Francois Maltey <[EMAIL PROTECTED]> writes: > Dear Martin, > > > You probably should provide the three syntaxs. > > OK. > > > Could you define (exactly!) what expand is supposed to do. > > I guess that it's similar to ... maxima... > > I don't forget mupad, results are (almost) the same. > I'm looking for a syntax which is easy for easy computation > but which allows various interessing abilities. > > But might you help me for extracting real part and imag part for > Expression ... Complex ... ? in manip.spad. > Perhaps do you want I send you my working manip.spad.
Yes, please. But I'm a little out of time currently. In the worst case, I can only help after the workshop, but I'll do my best. > I'm going to test an expand which > 1/ separates real part and imag part, if it's a Complex domain > then 2/ always applies sum formula, > and 3/ applies Integer * formula_without_denominator > for sin, cos, tan, cot, sinh, cosh, tanh, coth, exp... > > A list of String describes the parameters and precises the expand use : > > noComplex bypass the first step, noSum the second, noTimes the third. > allDenom expands also sin (2*x/3) in 2 sin (x/3) cos (x/3) > evenConst expands sin (sqrt 2 + sqrt 3) in sin... cos... + cos... sin... > recursif does the silly expand (sin (sin (a+b))) > ????? expands sin (x/3+y/2) * cos (x/2-y/7) in sin... cos... x/6 and y/14 > ! > (but I'm not sure I can do it !) Since I'm very bad at trigonometrics, I find the description above a little terse. Precise definitions would be very helpful. Martin _______________________________________________ Axiom-developer mailing list Axiom-developer@nongnu.org http://lists.nongnu.org/mailman/listinfo/axiom-developer
