complex polynomials

I currently have a polynomial, where each term is associated with terms of the form exp(1i*t*w*2), exp(1i*t*w*3) etc. When i raise this polynomial to any power, the product of exp(1i*t*w*2) and exp(1i*t*w*3) does not give me a compact term exp(1i*t*w*5), but continues to show it as the product of the two terms. I have used 'expand' and 'simplify' to no avail. How do i get around this problem?

2 Commenti

the cyclist
the cyclist il 7 Giu 2011
It would help immensely if you actually showed us your code.
Walter Roberson
Walter Roberson il 7 Giu 2011
In Maple,
simplify(exp(I*w*t*2)*exp(I*w*t*3))
is all that is needed.

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 Risposta accettata

Andrei Bobrov
Andrei Bobrov il 7 Giu 2011

0 voti

symbolic toolbox (MuPAD)
syms t w
expr=exp(1i*t*w*2)*exp(1i*t*w*3);
result = evalin(symengine,['simplify(' , char(expr),',exp)']);

2 Commenti

Smarjeet
Smarjeet il 7 Giu 2011
thank you
Andrei Bobrov
Andrei Bobrov il 7 Giu 2011
small correcting
result = evalin(symengine,['simplify(' , char(expr),')']);

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