Mar 1, 2015 · You and I know that this definition doesn't have lot of meaning for objects "u" that aren't functions, but Mathematica doesn't need to know that u is a function.

Each function should document any side effects it makes. Things like creating a file, or updating a file, and such are considered a side-effect and can't be prevented by the language. But should …

We know that, in general, an equation system defines a set of points as a function of the parameters in it. Namely, the set of variable assignments or valuations that make the equation …

Note that if you do not include a space between x and y in xy, the latter will be considered as an independent variable of name xy. This being said, defining f[x_, y_] = (y/x) + x y and asking for …

Mar 12, 2020 · You can have the same function name but have it operate differently when supplied with different types of arguments. Thus you could define f[a,b] and f[x[i], q[j,k]]. You …

I want to define a custom function (more complicated than the usual f[x_] := someExpression) that performs several tasks (taking elements of a set, performing computations, etc.) before giving …

Sep 25, 2020 · Type "define a function" in the search field and click on the maginifing glass icon on its right. You will see or something similar depending on what OS you are running. Click on …

May 18, 2016 · I'm working on a model that requires a sum over a function that uses various coefficients. In order to make the sum easier to perform, I am trying to keep things general …

7 This question already has answers here: How to define a function of non-symbol (2 answers)

8 I'd like to define a function by way of the output of a definite integral with symbolic bounds. For instance, F[m_,k_] := Integrate[x,{x,m,k}] would define F[m_,k_] := (1/2)(k^2 - m^2) This seems …