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Questions tagged [units-of-measurement]

Units of Measure are compile-time attributes that can be associated with numeric values, typically used to indicate length, volume, mass, and so on.

A Unit of Measure is information that can be associated with a numeric value, typically used to indicate length, volume, mass, and so on. This information is used in numerous applications ranging across engineering, science, physics, and many other disciplines.

If this information is stored as a compile-time attribute, then a compiler can verify arithmetic relationships of values across the numeric computations to have the proper units, therefore preventing programming errors.

See also Units Dimensions And Dimensionless Numbers.

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Measurement conversion on the fly

I'd like to ask re: measurement conversion on the fly, here's the detail : Requirement: To display unit measurement with consider setting. Concerns: - Only basic (neutral) unit measurement is going to be stored in database, and it is decided one…
ikadewi
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Unit of measurement in a game physics engine

in my game I get the acceleration from the accelerometer. Computing my calculation, I have to apply a coefficient to turn unit of measurementin pixel unit. I apply the coefficient founded for an Android app (in a sample): DisplayMetrics metrics =…
thebestneo
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What is the unit of measure for the pressure data I collect using an FSR sesnor with an Arduino

I have written code on the Arduino to record the pressure applied to a FSR sensor connected to pin A0. Here is my code int pressureAnalogPin = 0; //pin where our pressure pad is located. int pressureReading; //variable for storing our reading bool…
George Quine
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How to convert a column from feet and inches (X'X) to meters?

I am new to R. I have a column of heights formatted as X'X (feet and inches). I want to convert it to meters. Does anyone have any ideas? Data: Height 4'1 6'7 6'8 5'11 5'9 6'5 4'5 6'1 4'4 4'5 6'11 6'8 6'8 4'2 6'11 6'11 4'8 …
Erica
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Using Years unit interval in Swift Foundation Measurements framework

how can I display date iterval in years (or years + months) using Foundation’s Measurements()? I’ve made it to display interval but biggest unit I’ve found it hours … and it is not valid for me (display with beautiful localisation 87600 hours for…
Paweł Madej
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Delphi Convert returning invalid types

Im trying to perform the most simple of Conversions in delphi using the built in Convert function. Simply to convert gallons to litres. However delphi returns invalid type on the conversion units. procedure TfrmMain.NumberBox1Change(Sender:…
Revski
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Units of drawEllipse

I was looking on the internet but I didn't find an answer. I need to know in what kind of units drawEllipse works: pixels, centimetres... I also need to know if there is a easy way to change that units (I need it on centimetres). Thanks a lot!
Imrik
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What unit does Swift use for angles?

Am am writing some code to draw circular charts, and while reading some example code, became confused about how angles are measured in Swift. In the first post I read, Swift seems to use radians: CGContextAddArc(context, origo.x, origo.y, radius,…
user31415
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Enhanced Ecommerce: Shopping Behavior Analysis - Update Time

Hello I just want to ask if how long will the shopping behavior analysis updates it's data and how am i going to check if im tracking the correct amount of data. Thanks
rj tubera
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DistanceMeasure type of data in Java Mahout library

I've written a code to cluster a group of data in Java. I am using Apache Mahout to build clusters. Here is the piece of my code: Configuration conf = new Configuration(); Path input = new Path("C:\\DATA\\input.txt"); Path…
JoshuaJeanThree
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How to add two numbers having same units in python

I have a pandas dataframe where one column has values in kiloTon as abbreviated 'kt'. Now when I perform groupby on Country column and year column and call aggregation function sum on Value column, it's not actually doing sum of values in value…
Surbhi Jain
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Removing units of measurement from a database (python)

I have a database that looks like the picture. I would like to remove all units of measurement. Some columns have writing on them is there any way I can do this? 3 390 kg/m3 1081 J/kgK 0.1 W/mK 4 420 kg/m3 1081 J/kgK 0.112 W/mK 5 600…
Simone Panico
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Why are the symbols of some constants eliminated in certain equations when we assign them the value 1?

For example, in the expression of the gamma factor in special relativity we make c = 1 because the units are not important, but when c is suppressed from the equation Gamma = 1 / SQRT (1 - (v / c) ^ 2) it remains: Gamma = 1 / SQRT (1 - v ^ 2) which…
Javier Soto del Valle
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How to convert feet to cm in R?

I'm given a charachter vector of heights looking like that: [859] 5'10 5'8 5'11 6'0 5'10 6'2 5'11 6'2 6'2 5'7 5'9 5'7 6'1 6'0 5'11 6'0 6'5 6'1 6'1 5'10 5'11 5'11 6'0 6'4 6'5 5'10 [885] 6'0 6'1 5'10 5'10 5'8 6'1 6'0 5'11 6'0 …
Joshua
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Second unit does not find TImage

so I have some work to do using lazarus and one of my procedures is written in a second unit but also used in the first. The problem is, I want to give the procedure a TImage from the Form connected to unit 1, but unit 2 can't find an identifier…
Neubauer
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