Maxima: replace conjugate product by squared absolute value -


i have expression several products like: a*conjugate(a). how ask maxima replace them cabs(a)^2 ?

thanks in advance

one way switch polarform. adjust p(e) 

declare([a, b, c], complex); e: a*conjugate(a) + b^2*conjugate(b)^2 + c; /* apply `polarform' if `p(e)' true */ p(e):=member(e, ['a, 'b]); polarform0(e):=if p(e) polarform(e) else e; scanmap(polarform0, e);

ouputs:

c+abs(b)^4+abs(a)^2$

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