0
votes
1answer
82 views

Replacement rules in combination with pure functions to make a change of variables

I have defined my function in this way w = f[r,Θ] ; After some calculations i obtained my results with respect to the previous function. For instance: ...
3
votes
1answer
146 views
0
votes
0answers
69 views

Patterns and replacements [on hold]

I basically need to read off informations from an expression in order to apply some recursion relations. The terms I encounter have a form like $f(k) = (1+ k_{\alpha}^{n1} k_\beta^{m1} ...
2
votes
2answers
283 views

Mass Symbolic Manipulation with Subscripts? (from plaintext Input)

The simplest example of the change being sought is a greek letter, typed in as plaintext nu, and its may be replaced by the symbol, ν: expr = 3nu*kx*ky+ ...
8
votes
2answers
174 views

Representing a value in an output as a self defined variable

I'm trying to find a way to have Mathematica always represent a numerical value as a self defined variable that I define using lhs=rhs. For example, if I execute ...
13
votes
6answers
2k views

Replacing composite variables by a single variable

To replace a single variable by another variable, one can simply use the the replace all (/.) operator (e.g., ...