der |
Syntax |
der(F:POLY, X:INDET):POLY where F is a polynomial or a rational function. |
Description |
Example |
/**/ Use R ::= QQ[x,y]; /**/ Der(x*y^2, x); y^2 Define Jac(F) --> The Jacobian matrix for a polynomial. Return Mat([[Der(F, X) | X In Indets(RingOf(F))]]); EndDefine; Jac(x*y^2); matrix([ [y^2, 2*x*y] ]) ------------------------------- Der(x/(x+y), x); // not yet implemented y/(x^2 + 2xy + y^2) ------------------------------- |
See Also |