polynomial

[pipapongo]

hi evrybody,

i am looking for an existing class for a polynomial like a_1*x^n a_2*x^(n-1) + ... +a_m;
i searched this forum and asked google but i have nothing found which seems pretty awkward. Is there really no standartclass??
i would have done it allready but i need it to be very fast and thats not what my classes are in general :-) --> still quite new to c++ / Qt.

thanks in advance

[wysota]

How is this question related to Qt?

[pipapongo]

my question is if Qt offers a way to do that, or what would be the best approach.

do i use standart c++ with an dynamic array for the coefficiants or ahall i use QList. do i loose performance when i take QList?

thanks

[wysota]

No, Qt does not offer any classes for handling mathematical expressions.

[ChrisW67]

I'm still puzzling over what such a 'class' would do other than evaluate the expression for given inputs.

[amleto]

if he needs it 'to be fast', then I would hazard a guess at root solving.

[wysota]

... or rendering the expression.

[alainstgt]

just Google "c++ polynomial class" and you´ll get a lot of answers

Alain