Linked Questions

SubValues, as discussed in a previous question, are declared as follows ...

Forgive me if this question is very basic; I've learned Mathematica mostly by example. In most programming languages, there is a clear distinction between variables and functions: variables hold ...

Good evening to everybody, my question is about computing the derivative of a Black and Scholes option and to draw it. My code is ...

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I imagine that this question has been asked before, yet I'm not able to find an answer using the form of the question I believe might be asked. Is there a mechanism for duplicating the ...

This should be an easy question! I want to define a function with domain = the 12 integers {1,12}, with the values f[1]=31, <...

When trying to solve a set of equations, I made a mistake by using = instead of ==. Now when I fixed the mistake, the equation ...

I have been playing with slightly above trivial code manipulations in Mathematica. I thought Mathematica would be great for this kind of work because of rule replacement and expression manipulation, ...

When I do this: Apply[(If[#2 == what, "yay", If[#2 == whoops, "nay"]]) &, {-5, what}] I get: yay But when I do this: <...

I am trying to solve numerically a system of linear ODEs with some quickly varying driving functions. The basic command is: ...

Need to understand the principle of the distinction between f[x_,y_] and f[x_][y_] It seems also that z[x_, y_][a_, b_, c_][α_, β_] := a (x + y)^b + c/(α-β) ...

Consider: This is a classic mistake (using a single equal sign) that has been discussed on Mathematica Stack Exchange before. I know that Clear[Derivative] will cure the problem. However, consider ...

Looking at Names["SystemPrivate*"] gives: I'd really like to use and look at the code for some of these symbols, e.g. ...

Consider c = Cos[phi]; s = Sin[phi]; ArcTan[c, s] // PowerExpand ArcTan[s/c] // PowerExpand which yields ...

As the titles describes, I want to create a list of functions like the following, where the indices are not in the argument slots: ...