Minus to plus cylinder calculator

Afterward you can fill in the data in the formula and what you will calculate looks like this. ... It can be found under the acronym called CYL which stands for the cylinder. The same formula as shown for the SPH applies to the CYL value. ... (Plus or Minus) Contact Lens Power if Glasses Power is Positive-3.75: 4.00 +4.25-4.00: 4.25 +4.50-4.25 ...

Steps to Use the Combine Like Terms Calculator. This tool is a very simple tool for combining like terms. Follow the given steps to use this tool. Step 1: Enter the complete equation in the first input box i.e. across "Enter Terms:". Step 2: Click on "Combine Like Terms". Step 3: After clicking on "Combine Like Terms", a new window ...Cylindrical Surface is a curved surface generated by parallel duplication of a line. A right hollow circular cylinder is a three-dimensional solid bounded by two parallel cylindrical surfaces and by two parallel circular bases cut out from two parallel planes by these two cylindrical surfaces. The shortest distance from the center of the circular base to the inner cylinder is the inner radius ...True position formula for with MMC/LMC. The formulas are straightforward. However, it is a tricky calculation since it is easy to get confused with the signs (Plus/Minus) Step 1 – Obtain the position deviation P from the above formula (True position without MMC / LMC) Step 2 – Obtain the Material Condition (MC) from the below table ...Because this is a sphero-cylinder lens we will need recalculate the entire Rx. For our primary meridian of 45: 18.00 / 1 + 0.003 X 18.00. 18.00 / 1 + 0.05. 18.00 / 1.05 = 17.14. Or a perceived power 0.86 weaker which makes sense since this is a plus lens being moved closer to the eye. For our primary meridian 90 degrees away from 45 at 135:This is the formula for the total surface area of a given cylinder whose radius is r and height is h. Problems and Solutions. Q.1: Calculate the cost required to paint a container which is in the shape of a right circular cylinder having a base radius of 7 m and a height of 13 m. If the painting cost of the container is INR 2.5/m 2. (Take π ...The commute cost calculator exactly as you see it above is 100% free for you to use. If you want to customize the colors, size, and more to better fit your site, then pricing starts at just $29.99 for a one time purchase. Click the "Customize" button above to learn more!Enter spectacle correction in minus cylinder format. Sphere +20.00 to -30.00; ... Calculate Reset. Suggested lens power. Sphere 0.00; Cylinder ... To calculate the volume of a plus to minus cylinder, you will need the following parameters: Radius 1 (cm): The outer radius of the larger circular end. Radius 2 (cm): The inner radius of the smaller circular end. الطول (سم): ارتفاع الاسطوانة. The formula for calculating the volume of a plus to minus cylinder is: V = π∗ ...

For the work of the simple calculator You can use both ordinary numeric buttons above the keyboard and separate numeric buttons on the right. You can use the [Enter] key to enter the equal character. To delete the last character, press the [Backspace] (arrow) key. To enter a plus sign, use the [ + ] key at the top or on the side numeric keypad.Step 1: Choose a drop-down list to find the value of the surface area and volume of the cylinder. Step 2: Enter the radius and height in the given input boxes. Step 3: Click on the " Calculate " button to find the value of the surface area and volume of the cylinder. Step 4: Click on the " Reset " button to clear the fields and enter the new ...For example, the AcrySOf IQ Toric IOL or Clareon Toric IOL (Alcon) and the Tecnis Toric II (Johnson & Johnson) have 0.75-D steps between most of the cylinder powers, whereas the AT TORBI Toric IOL has a consistent 0.5-D cylinder step. My colleagues and I recently completed a study evaluating whether the step magnitude made any difference in ...convert minus cylinder to plus cylinder calculator. ghermezian family net worth 2020 ...This is the lens power needed to fix your vision. A minus sign (−) next to the number means nearsightedness (you see better up close and need distance correction). A plus sign (₊) indicates you are farsighted (you see better far away and need your near vision corrected). Lens power is measured in diopters, so you may see the sphere field ...can you put mousse in a travel container. how to transpose plus to minus cylinder. john deere lt155 spark plug; laura lane ups salaryConverts plus to minus cylinder form to easily transpose any prescription. Diopters to Radius of Curvature Calculator Measure and find the conversion of diopter measurements to radius of curvature. Aniseikonia Calculator Calculate the correct base curve/thickness magnification by manipulating transcription manufacturing.

This is the lens power needed to fix your vision. A minus sign (−) next to the number means nearsightedness (you see better up close and need distance correction). A plus sign (₊) indicates you are farsighted (you see better far away and need your near vision corrected). Lens power is measured in diopters, so you may see the sphere field ...Fill in the input fields and then press the Calculate button in order to compute the resultant sphero-cylindrical prescription that is produced by combining—or crossing —two individual prescriptions (such as for an over-refraction). Crossed Cylinders Calculation Form OptiCampus Online Optical Continuing EducationTranspose Plus to Minus Cylinder Calculator October 10, 2023 by GEGCalculators Spread the love To transpose a plus cylinder to a minus cylinder, …Slide 24. When using a plus cylinder phoropter, you will "Chase the white dot" to determine cylinder axis. For cylinder corrections of 2.00D or less, initially rotate the cylinder axis knob 15 degrees towards the white dot. Make smaller changes, initially 5 degrees, when the starting cylinder power is greater than 2.00D.Our Hex Calculator is designed to be user-friendly, catering to both beginners and experts. Here's what you can expect: Step-by-Step Solutions: No more scratching your head, trying to figure out how a result was derived. Every calculation comes with a detailed breakdown. Versatility: Whether it's hex addition, hex subtraction, or even more ...

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Interference Fit Force Required the Press Together Hub and Shaft Equations and Calculator Radial displacements due to Poisson effect, thermal expansion and rotation An interference fit, also known as a press fit or friction fit, is a fastening between two parts which is achieved by friction after the parts are pushed together, rather than by ...You perform a SCOR over a scleral lens on the right eye with front surface toric power of -3.00 -1.25 x 180. You find an over-refraction of: plano -0.75 x 150. The lens is rotated 15˚ to the right. Should you wish to incorporate the over-refraction, use an online cross cylinder calculator.Here I present a quick shortcut to help convert between minus and plus cylinder notation of a toric system.Practice retinoscopy in plus or minus cylinder. Practice retinoscopy using a refractor instrument. Practice retinoscopy using trial lenses. Work through compensating for working distance. View your retinoscopy results to see how close you came to the patient's "true" refraction.Step 1 = Combine the sphere and cylinder power mathematically •Step 2 = Change the sign of the cylinder •Step 3 = Change the axis by 90 degrees •1. + 1.75 – 0.75 X 030 2. –2.25 + 1.00 X 170 •3. – 1.75 + 2.00 X 125 Review Questions 1 minute drill • Convert the following prescription from minus cylinder to plus cylinder formatEyeglass Prescription Positive Cylinder Conversion. Ophthalmologists write astigmatism prescriptions with positive (+) cylinders. Most eyeglass labs, including ours, cut lenses …

Calculator Plus Cylinder To Minus ABIEWIU from abiewiu.blogspot.com. Converts plus to minus cylinder form, The volume of a cylinder as well as the dimensions that are related to it can be calculated by merely inputting those values that are already known to the user. Calculated residual astigmatism related to each suggested lens model can be ...pilipinas kong mahal tempo. thunder gauntlet 5e; Portfolio. cobb county voting precincts; dr horton lawsuit georgiaPlus cylinder notation: 180 +3.00 +2.00 x 090 Minus cylinder notation: +5.00 -2.00 x 180 Hint: The sphere is "married" to the axis; the cylinder is the distance between the numbers on the cross • To take an RX off the Optical Cross in Minus Cylinder Form: • Step 1 Start with the most plus sphere power (use your number line)Calculate the volume and surface area for all different types of cylinders and cones. Use the volume addition postulate to find the volume of composite solids. Video – Lesson & Examples. 58 min. Introduction to video: cylinders and cones; 00:00:25 – Formulas for finding the volume and surface area of a cylinder and coneWorksheet. FAQs. Adding two positive integers results in positive integers, whereas adding two negative integers will result in the sum with a negative sign. But, the addition of two different signed integers will result in subtraction only and the sign of the result will be the same as the larger number has. See a few examples below: 2+2 = 4.Proceed with subtracting the bottom number from the new, larger top number. Put the answer at the bottom of the column. If you encounter a 0 while regrouping, just continue to the left until you find a non-zero number. Regroup (borrow) 10 from each column until you're back at the column you're working on. Continue the long subtraction until you ...We automatically perform this conversion if the prescription you enter is written with a positive (+) cylinder, but if you would like to get the conversion of your positive cylinder prescription, you can do so by using the Positive Cylinder Conversion tool below. Still have questions? Call us at 1-888-248-5367 to speak to one of our trained ...V = volume - 1.75 + 2.00 X 125 Review Questions 1 minute drill Transpose the following Rx from plus cylinder form to minus cylinder form -2.00 +1.00 x 090 nQt}MA0alSx k&^>0|>_',G! Step 1: Add the sphere and cylinder components together Step 2: Change Cylinder Sign If the cylinder sign is +, change it to -.Jackson cross cylinder of +/- 0.25 diopter. Jackson cross cylinder is a single low power lens, which is a combination of a plus cylinder and a minus cylinder of equal power with axis perpendicular to each other, with a handle placed between the two axes at 45 degrees.

convert minus cylinder to plus cylinder calculator. von ; Mai 17, 2023 ...

Refractive Cylinder Convention. Calculated residual astigmatism related to each suggested lens model can be written in either of two equivalent forms: Plus Cylinder or Minus Cylinder. It can be changed back and forth once the calculation has been performed. e.g., +0.01D x 90º (Plus Convention) = -0.01D x 0º (Minus Convention)convert minus cylinder to plus cylinder calculator. timothy murphy dallas ...Cylinders. Imperial. Metric. Engine displacement (cubic inches). Engine displacement is determined by calculating the engine cylinder bore area multiplied by ...After establishing the spherical power as describe above, VA is 20/200. 200 divided by 100 = 2.00D. This indicates that you will start with a +/-1.00D JCC. With the JCC oriented for power at 90/180 degrees, ask the patient which is clearer. Patient states that +1.00D axis 180 is clearer. Put a +2.00D axis 180-cylinder lens in the trial frame.In general, the plus cylinder notation is used because the incisions are placed on the cornea straddling the axis of the plus cylinder.58 59 Laser photorefractive keratectomy also has the ability to correct the corneal astigmatism at the same time as correct myopia. 61 62 In effect the procedure cuts a minus cylinder from the corneal surface ...Whether the lens is plus or minus only matters to determining the direction of the prism's base. Example 2: A +6.50 lens is decentered 3 mm toward the wearer's nose. ... Remember that because a cylinder is uniformly thick along its axis, ... But since they require a calculator, ...This is a simple calculator with memory functions similar to a small handheld calculator. Use this basic calculator online for math with addition, subtraction, division and multiplication. The calculator includes functions for square root, percentage, pi, exponents, powers and rounding. How to do repeating operations, higher powers and roots ...Calculators. how does the un affect the uk public services; devacurl lawsuit 2021; happy deltaversary line sisters; used baby grand piano near me; bugs in chia seeds; wheel of fortune 2005 2006; mo farah twin brother Contact Us. convert minus cylinder to plus cylinder calculator ...

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The Height of a Cylinder calculator computes the height (h) of a right circular cylinder from the volume (V) and radius (r) of the base (see diagram).The transfection molar ratio refers to the ratio of DNA or RNA molecules to transfection reagent, such as lipids or polymers, used to introduce genetic material into cells. The optimal ratio can vary depending on the cell type, transfection method, and experimental goals, but it is critical for achieving efficient gene delivery and expression ...The volume of the waffle cone with a circular base with radius 1.5 in and height 5 in can be computed using the equation below: volume = 1/3 × π × 1.5 2 × 5 = 11.781 in 3. Bea also calculates the volume of the sugar cone and finds that the difference is < 15%, and decides to purchase a sugar cone.Using partial derivatives to calculate the volume change of a cylinder. 1. Calculate volume of wooden logs by top and bottom perimeter length and total length. 1. What is the length of this segment given the radius? 0. Equating volume of sphere and cylinder. 0.>DS Result in minus (-), use “myopia” columns >Myopia conversions are for all ages >Conversion for this example indicates an “estimated” visual acuity of 20/60 (OD) and 20/60 (OS) >Example 2 >DS Result in plus (+), use “hyperopia” columns >Hyperopia conversions require age selectionFigure \(\PageIndex{1}\) The level of a liquid in a graduated cylinder. The saucer-shaped surface of a liquid in a tube is called a meniscus. Illustration of a part of a graduated cylinder filled with a liquid. The liquid surface has a downwards curvature that gives off a reading of 38 centimeter cubed.power (SAM/FAP or steep add minus, flat add plus). Ignore the cylinder power and the steeper K value. o Example: Rx -4.50 -0.75 x 180; K’s 43.00 @ 180/ 43.75 @ 090 ... the OR, use one of many available cross cylinder calculators. These may be found on the AOA Contact Lens and Cornea Section web site, www.eyedock.com, as well as many softOphthalmologists (MDs) are typically taught in plus cylinder and Optometrists in minus. Optometry grew out of the opticianry business where oculists (an old word for eye doctor) actually had to grind a lens blank flatter in a particular direction to treat the astigmatism, hence the minus (subtracted) number along that direction.Rule 1. wG xR^[ochg`>b$*~ :Eb~,m,-,Y*6X[F=3Y~d tizf6~`{v.Ng#{}}jc1X6fm;'_9 r:8q:O:8uJqnv=MmR 4 Lens prescription can be written in any of this form, Plano cylinder: This has one surface plane and the other, either + or cylinder eg (plano x 0.50DCx180), Sphere cylinder: This has one surface spherical and the other cylindrical eg +0.75DS -1.00DC ... ….

Now change the plus sign of the cylinder to a minus, and keep the cylinder power the same. Finally, change the axis by 90 degrees. -2.50 +0.75 155 becomes and is equal to -1.75 -0.75 065. +4.25 +1 ...Transpose Rx. Use this calculator to convert any Rx between plus cylinder form and minus cylinder form. Click here to see how to transpose an Rx manually. Enter the Rx* …Refractive Cylinder Convention. Calculated residual astigmatism related to each suggested lens model can be written in either of two equivalent forms: Plus Cylinder or Minus Cylinder. It can be changed back and forth once the calculation has been performed. e.g., +0.01D x 90º (Plus Convention) = -0.01D x 0º (Minus Convention)In the minus cylinder notation, the cylinder power is a number of diopters more divergent than the sphere component. Add the sphere and cylinder numbers together to produce the converted sphere; Invert the sign of cylinder value; Add 90° to axis value, and if the new axis value exceeds 180°, subtract 180° from the result3 rules of eyeglass prescription lens transposition. Sum: Add the sphere and cylinder powers of prescription to determine the new sphere power. Sign: Change the sign of the Cylinder. Axis: Change the axis by 90 degrees (if the axis is less then or equals to 90°, add 90° to the axis, and if the axis is more than 90°, subtract 90° from the axis).Use cross cylinder appropriate for visual acuity. If VA is better than 20/40 use 0.25 D. If less than 20/40 use 0.50 D cross cylinder. The red dot is minus; the white dot is plus. The stronger the cylinder, the more critical the axis. As age goes up, plus cylinder axis shifts toward 180 .To subtract 10 percent from 100 just divide the percentage (10) by 100, subtract this value from 1, then multiply it by the initial value (100), so: Final Value = 100 × (1 - 10 / 100) Final Value = 100 × (1 - 0.1) Final Value = 100 × (0.9) Final Value = 90. Subtract 10% is the same as discount 10%. this operation could be, for example, a 10% ...Plus cylinder notation: +3.00 +2.00 x 090 Minus cylinder notation: +5.00 -2.00 x 180 Hint: The sphere is "married" to the axis; the cylinder is the distance between the numbers on the cross Optical Cross To take an RX off the Optical Cross in Minus Cylinder Form: Step 1 Start with the most plus sphere power (use your number line)Add or remove 90 degrees to the axis depending on the original axis. If the original axis is less than or equal to 90 degrees then add 90. When original axis is greater than 90 degrees then subtract 90. New Axis. = the original axis + or – 90. = 20 + 90 = 110 YES. = 20 – 90 = -70 NO. Answer. = 110.Advertisement. Convert plus cylinder to minus cylinder calculator Nov 09, · Transpose a lens power of /+ x (in the plus-cylinder form) to minus-cylinder form. Step 1. Add the sphere and cylinder values to obtain the new sphere power: + = + If you notice that there is a plus sign in front of the cylinder numbers in your prescription and you ... Minus to plus cylinder calculator, The volume of the waffle cone with a circular base with radius 1.5 in and height 5 in can be computed using the equation below: volume = 1/3 × π × 1.5 2 × 5 = 11.781 in 3. Bea also calculates the volume of the sugar cone and finds that the difference is < 15%, and decides to purchase a sugar cone., Cylinder (CYL) Cylinder indicates the amount of lens power needed for astigmatism. It always follows the sphere power on an eyeglass prescription. The number in the cylinder column may have a minus sign (for correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism)., how to transpose plus to minus cylinder. May 23, 2023 Posted by ..., This is a list of uncategorized free calculators at calculator.net. Also explore other calculators including math, finance, health, fitness, housing, and more., This OT skills guide will share insight on how to transpose an optical prescription. In this skills guide video, OT takes viewers through the three simple mathematical steps of transposing between writing a prescription for astigmatism using a plus cylinder form and a minus cylinder form, providing examples to support with learning., A quadratic equation solver is a free step by step solver for solving the quadratic equation to find the values of the variable. With the help of this solver, we can find the roots of the quadratic equation given by, ax 2 + bx + c = 0, where the variable x has two roots. The solution is obtained using the quadratic formula;. where a, b and c are the real numbers and a ≠ 0., Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. plus or minus. Save Copy. Log InorSign Up. We can get a plus or minus sign by copying and pasting '\\pm' into desmos, don't ask why this works, but it works with a whole bunch of ..., Instructions: Select units (either imperial or metric) Either choose a material or manually input the linear thermal expansion coefficient. Input the original (initial) material length and input the temperature change. Clicking on the "Calculate" button will provide the length change. * N.B. The thermal expansion coefficients employed are ..., cylinder power is not available, select the. lower cylinder . power lens. For instance, if the patient has 1.50 x 180- cylinder power at the corneal plane and the soft toric lens cylinder is available in either -1.25 or -1.75 x 180, select the -1.25 x 180 lens. Allow the lens to settle for a minimum of 10 minutes prior to evaluation., Transposition. Transposing a Rx prescription is simply converting the prescription from minus cylinder notation to plus cylinder notation. The optical properties of the prescription remain the same. Procedure: 1) Add the cylinder power to the sphere power to arrive at the new sphere power. 2) Change the sign of the cylinder power. , Double check the bore measurements in the middle and near the bottom of the cylinder. For this Diamond piston, the measuring point is .700 inch below the oil-ring groove and 90 degrees to the pin bore. If you don't have specific instructions from the manufacturer, a safe measuring point is in the middle of the skirts at 90 degrees to the pin ..., The formula for the volume of a cylinder is: V = Π x r^2 x h. "Volume equals pi times radius squared times height." Now you can solve for the radius: V = Π x r^2 x h <-- Divide both sides by Π x h to get: V / (Π x h) = r^2 <-- Square root both sides to get: sqrt (V / …, Step 2: If you have a cylinder value, enter it into the cylinder tab. Cylinder is usually written as CYL. Make sure to place the – symbol in front of the cylinder value. If you’re cylinder has a plus cylinder, it needs to be converted to the minus form. Click HERE to convert your prescription to the minus form before proceeding. Step 3: If ..., If you have the volume and radius of the cylinder:. Make sure the volume and radius are in the same units (e.g., cm³ and cm).; Square the radius.; Divide the volume by the radius squared and pi to get the height in the same units as the radius.; If you have the surface area and radius (r):. Make sure the surface and radius are in the same units.; …, Enter the fraction you want to simplify. The Fraction Calculator will reduce a fraction to its simplest form. You can also add, subtract, multiply, and divide fractions, as well as, convert to a decimal and work with mixed numbers and reciprocals. We also offer step by step solutions. Step 2: Click the blue arrow to submit., Summary. Your eyeglasses prescription may include Latin abbreviations, numbers, and mathematical signs. These numbers are used to describe the correction you need in your glasses. A plus sign next to the number means you are farsighted, while a minus sign means nearsightedness., 4 Answers. In order to exactly find the volume, you must use π π, as volume of a cylinder is given by. The area of the base is τa2 2 τ a 2 2, so the volume is τa2z 2 τ a 2 z 2. Haha, I know about τ τ! It does seem like the easy way out, though... I think τ τ is cheating a bit, because τ = 2π τ = 2 π!, The quarter weighs about 6.72 grams, with a nominal uncertainty in the measurement of ± 0.01 gram. If the coin is weighed on a more sensitive balance, the mass might be 6.723 g. This means its mass lies between 6.722 and 6.724 grams, an uncertainty of 0.001 gram. Every measurement has some uncertainty, which depends on the device used (and the ..., Solved Examples. Question 1: Find the volume of the given figure in the nearest cubic centimeter. Answer: The formula of the cylinder is πr²h, here r = 8 cm and h = 15 cm Therefore, volume of given cylinder = π 8 8 15 = 3016 cubic centimeters. Question 2: Find the curved surface area of a cylinder of radius 5 cm and height 7 cm., Calculate the clearance from piston to deck (bore × bore × 0.7854 × gap between piston and deck at top dead center (TDC)) - Measure the thickness of your head gasket and bore. - When you have all the figures, use this formula for the calculation of your engine's compression ratio: CR = (cylinder volume + clearance volume + piston volume ..., — Transpose to and from minus cylinder form — Transpose to and from plus cylinder form — Transpose to and from cross cylinder form — Support for dark theme Fork this ... Good Soil Plus. Mighty Networks. 4.4 star. flagFlag as inappropriate. Google Play. Play Pass. Play Points. Gift cards. Redeem. Refund policy. Kids & family. Parent ..., By factoring 2πr from each term we can simplify the formula to: A = 2πr (r + h) The lateral surface area of a cylinder is simply given by: LSA = 2πr × h. Example 1: Find the surface area of a cylinder with a radius of 4 cm, and a height of 3 cm. Solution: SA = 2 × π × r2 + 2 × π × r × h. SA = 2 × 3.14 × 42 + 2 × 3.14 × 4 × 3., Calendar Generator - Create a calendar for any year. The World Clock - Current time all over the world. Countdown to any date. The Date Calculator adds or subtracts days, weeks, months and years from a given date., Cylindrical Surface is a curved surface generated by parallel duplication of a line. A right hollow circular cylinder is a three-dimensional solid bounded by two parallel cylindrical surfaces and by two parallel circular bases cut out from two parallel planes by these two cylindrical surfaces. The shortest distance from the center of the circular base to the inner cylinder is the inner radius ..., Use this formula to calculate the volume of a cylinder. Here's a diagram to help you. To use the volume formula, you need the cylinder's height (which you know) and the area of its base. To get the area of the base, you need its radius. And to get the radius, you can use the surface area formula and solve for r: Remember that this "rectangle ..., transpose plus to minus cylinder calculatorsparse tensors pytorch Carolina Pool Services and Supplies P.O.Box 472270 | Charlotte | NC | 28247 | 704.542.2229 blundell family, liverpool, Cylinder(CYL) AXIS(AXI) Right Eye. Sphere(SPH) Cylinder(CYL) AXIS(AXI) On The Basis Of Your Requirements These are Your Contact Lens Powers ... The calculator gives you the closest available power. Try Bausch + Lomb contact lenses in 3 easy steps Get Your Free Trial Today . Where To Buy. Online. In Store, We transpose prescriptions from plus to minus cylinder. We calculate minimum blank size. We use Prentice's Rule during final inspection. We don't, however, tend to calculate the value of a 30° cylinder at axis 90° every day. ... When we transpose that prescription to plus cylinder: -3.00 +2.00 x 90 we see that the new sphere power ..., Enter feet in whole numbers. Enter inches in mixed numbers, whole numbers or fractions in the following formats: Mixed numbers as 1 1/2 which is one and one half or 25 3/32 which is twenty five and three thirty-secondths. Keep exactly one space between the whole number and the fraction. Fractions as 3/4 which is three fourths or 3/100 which is ..., Rx sphere power added to 1/2 the cylinder power. If the Rx is a sphere like -2.50 then you work with the -2.50. ... The more minus the power (less plus power to minus power) the lower plus the base curve will become. A high minus Rx may even have a base curve of +0.25 or even 0.00. To do that you can use Vogel's Rule which is this:, Spectacle calculator. Here’s a handy tool! Use our Spectacle Conversion Calculator* to convert a patient’s eyeglasses prescription to the corresponding contact lens parameters. * The calculator is designed to aid eye care practitioners. It is not a replacement for a professional contact lens fitting by a qualified eye care practitioner., This cylinder also available as a 3D stereo anaglyph . Radius = r. Height = h. Surface Area = 2 (π r 2) + h (2πr) Volume = (π r 2 )h. Cross Section (circle) = π r 2. This calculator will work out the surface area of a cylinder and the volume of a cylinder if you enter the radius and height. Only enter numbers (e.g. enter 22 not 22 cm )., 5. Select "Calculate" to receive the total weight and refrigerant weight. When you finish inputting your information and select the "Calculate" button, you will receive your recovery tank fill result. You will see two different values that are slightly grayed out. The top value is the total weight, which is your fill weight plus the ...