Convert units to String
Is there a way to convert compound units to string?For example, I have "Newtons"/"Meters"^2, how to I convert it to "N/m^2"?I know If I do the following QuantityForm[QuantityUnit[Quantity[1, "Newtons"/...
View ArticleGetting Molecular Weight for Stoichiometry Calculations
I love the units system in Mathematica, it's an extremely useful addition to the language. Unfortunately there are still some sharp corners that I run into on a daily basis. For example, if I want to...
View ArticleIncompatible Units Problem
I am trying to use quantities with physical units to calculate my result, but I encountered the "Incompatible units" problem. I don't know what is going on. Here is my code, could I have some...
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Plotting a function with units gives two different results
With the following code block, I plot a function with units in it in two different ways. Both ways should do the same in my understanding of the documentation.cm = Quantity["Centimeters"];f[x_] :=...
View ArticleWhere to see all Mathematica units [duplicate]
Is there a tutorial page that have all Mathematica units? I sometimes have hard time figuring out the correct unit spelling when using quantities
View ArticleStreamPlot "Part is not a Graphics primitive or directive."
I am trying to use StreamPlot with units. Here is a minimal example to produce the error "Part is not a Graphics primitive or directive." :g[x_] := UnitSimplify[UnitConvert[x...
View ArticleHow to convert units from percent per year to real number with CountryData?...
I have CountryData coming in via e.g.Entity["Country", "Australia"][ EntityProperty["Country", "GDP", {"CurrencyUnit" -> "Constant2000USDollar", "TimeSeriesOperator" -> "AnnualGrowthRate"}...
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MixedUnit in Fractions
Is there a way to have a more common output format on MixedUnit?Quantity[317.2,MixedUnit[{"Minutes"/"Kilometers", "Seconds"/"Kilometers"}]]givesI would love to have some unit like...
View ArticleAccuracy and precision control for a simple calculation [closed]
Consider a very simple calculation: $231 \times (2.54) ^ 3$, which is the number of cubic cm in a US gallon.On my phone app calculator I got the exact answer, which is $3785.411784$.On Mathematica,...
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A problem about the integration of blackbody radiation law using FormulaData....
I am trying to integrate blackbody radiation law under 1500 Kelvin using the FormulaData command.The integration seems not to work properly after I designate the integration range. Mathematica does not...
View Articlemesh / region creation in unit meters or mm:
How can we know the unit of mesh or create a mesh in specified length units:such as, for example I have: bmesh = ToBoundaryMesh["Coordinates" -> {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {1/6, 1/6}, {5/6,...
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Importing scientific data with uncertainties and units
I want to import scientific data from a CSV file. The data are length measurements in centimeters with uncertainties. I want to import the data with uncertainties and units into a vector - please see...
View ArticleWhy does different nondimensionalizations give different results? Although...
I have some problems with the non-dimensionalization of the Hamiltonian of motion in a Coulomb field.The Hamiltonian has a following form:$$H=-\frac{\hbar^2}{2\mu^*} \Delta_r-\frac{e^2}{\epsilon_0...
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Solve not working with cross product with units
I recently asked this question about using Solve with cross product.Solve not working when doing cross-productWhen I use the units in the definition of the variables, I am not able to get an answer.x =...
View ArticleIssue with unit conversion
I am getting an error converting energy unit Pa*m^3 (Pascal * Meters^3) to J (Joules).pi = Quantity[2.00*10^5, "Pascals"];Vi = Quantity[4.00*10^-6, ("Meters")^3];Vf = Quantity[8.00*10^-6,...
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Currency Interpretation for VND
Bug introduced in v12.2.0 or earlier, persisting through v13.2.1. Case number: 4973722As I was helping an OP with a question involving Vietnamese currency, I didn't realize at the time that the...
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Dealing with exponents that contain units?
Many of the equations I deal with involve powers of quantities which contain units. However, when the exponent contains units (e.g., E^Quantity[3, "Joules"]), Mathematica will not evaluate it "fully."...
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ToPolarCoordinates not working with units
I am trying to convert some quantities with units from rectangular to polar coordinates (to get the magnitude and angle). It seems that ToPolarCoordinates command does not calculate the angle when...
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How can the units of the "AtomCoordinates" in a Molecule be changed while...
Mathematica provides the Molecule function that can be visualized with MoleculePlot3D since version 12.0. Before, importing "XYZ" files would produce a Graphics3D object immediately. In this object,...
View Articlequantity of `Around` with "DimensionlessUnit"
Quantity[1, "DimensionlessUnit"]gives pure number1However,Quantity[Around[1, 0.1], "DimensionlessUnit"]still givesQuantity[Around[0.01`, 0.001`], "DimensionlessUnit"]instead of pure Around expression....
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