Singular Manual: evalJacobianAtBox

| #### D.8.8.9 evalJacobianAtBox Procedure from library `rootisolation.lib` (see rootisolation_lib). Usage: `evalJacobianAtBox(I, B)`; `I ideal, B box` Return: Jacobian matrix of `I` where polynomials are evaluated at `B` Purpose: evaluates each polynomial of the Jacobian matrix of `I` using interval arithmetic Example:
    LIB "rootisolation.lib";
    ring R = 0,(x,y),dp;
    ideal I = 2x2-xy+2y2-2, 2x2-3xy+3y2-2;
    interval J = bounds(-1,1);
    evalJacobianAtBox(I, list(J,J));
    ==> [-5, 5],[-5, 5]
    ==> [-7, 7],[-9, 9]
    ==>

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