Display trigonometry without Csc and Cot

Question

I have a result with trigonometry functions using Cot and Csc. I would like to keep only cos, sin and tan and so prefer fractions in the display of the results. How is it possible to ask Mathematica for not using Cot, Csh ... ?

Thank you for your help

Here is a recent question Evaluating complicated trig without resorting to numerical methods helpful in general cases such as your question. If you can't make use of that you have to be more specific with your problem. — Artes, Mar 06 '15 at 15:43
see this answer here: http://mathematica.stackexchange.com/a/7800/19476 — DaveStrider, Mar 06 '15 at 16:14

score 0 · Answer 1 · answered Mar 06 '15 at 16:58

0

I would define it as follows.

 f[x_] := (E^(3 x + 2))HoldForm[(1/Sin[2*x])]

If you type in f[x] , it returns e^(3x+2) (1/Sin[2x])

In order to evaluate it at any time,

  ReleaseHold[ f[x]] /. x -> Pi/4

answered Mar 06 '15 at 16:58

Mariusz Iwaniuk

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Display trigonometry without Csc and Cot

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