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DA.Differentiate

Computes the derivation of a differential polynomial.
Syntax
          
DA.Differentiate(F:POLY):POLY

          

Description
The function computes the derivation of the polynomial F. If the order of the result would exceed the given maximum order as implied by the current ring, an error is thrown.

Example
Use QQ[x[1..2,0..20]];
F:=x[1,4]^2*x[1,1]-x[2,4]^3;
DA.Differentiate(F);
-------------------------------
x[1,2]x[1,4]^2 + 2x[1,1]x[1,4]x[1,5] - 3x[2,4]^2x[2,5]
-------------------------------


Example
Use QQ[x[1..2,0..20]];
F:=x[1,20]^2*x[1,1]-x[2,4]^3;
DA.Differentiate(F);
-------------------------------
ERROR: Maximum order is exceeded.
CONTEXT: Error("Maximum order is exceeded.")
-------------------------------


See Also