406 views

How to contourplot a function defined via findroot? [duplicate]

when I use contourplot, the system will simplify the expression first with its parameters holded. However some expressions can not be simplified first without inputting parameters, for example, ...
945 views

530 views

Trouble with Nested Do Loops [duplicate]

I have: myres = {}; Do[ Do[ Append[myres, {j, i}], {i, 1, 3} ], {j, 1, 5} ] However, when I run the code and then enter: ...
596 views

Do loop - variable does not change [duplicate]

I got the follwing code which should add a '1' 100 times to an empty list. plotVals = {} Do[Append[plotVals, 1], {l, 1, Nmax}]; The output is again an empty ...
543 views

How to assign equation solutions to variables [duplicate]

I have 12x12 Matrix with which I have to solve the equation below: ...
204 views

How are Fourier transformations calculated? [duplicate]

Lets say my function is $$f(t)=\left\{\begin{matrix} 1 &, -T_p/2\leq t \leq T_p/2\\ 0& , |t|>T_p/2 \end{matrix}\right.$$ than a Fourier transformation is calculated F(j\omega)=\int_{-\...
201 views

Core functions or operations that every aspiring Mathematica programmer should know? [duplicate]

I am aware that there are common yet very powerful operations like Map, Thread, Apply, ...
155 views

How to delete some elements from a list? [duplicate]

This question is asked quite often but none of the answers I found seem to do what I want. I have a list ...