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NAGtypes :: evaluate

evaluate -- evaluate a polynomial system or matrix at a point

Synopsis

Description

Evaluates a PolySystem or a matrix with polynomial entries at a point.

i1 : R = CC[x,y]; S = polySystem {x^2+y^2-6, 2*x^2-y};
i3 : p = point {{1.0+3*ii,2.3+ii}};
i4 : evaluate(S,p)

o4 = | -9.71+10.6i |
     | -18.3+11i   |

                2          1
o4 : Matrix CC    <--- CC
              53         53
i5 : evaluate(jacobian S, p)

o5 = | 2+6i  4.6+2i |
     | 4+12i -1     |

                2          2
o5 : Matrix CC    <--- CC
              53         53

See also

Ways to use evaluate :