Singular Manual: bigintmat expressions

| ### 4.3.2 bigintmat expressions A bigintmat expression is: an identifier of type bigintmat a function returning bigintmat a bigintmat operation involving (big-)ints and int operations (`+`, `-`, `*`) an expression involving bigintmats and the operations (`+`, `-`, `*`) a type cast to bigintmat (see bigintmat type cast) Example:
      bigintmat m1[2][2]=1, 2, 6, 3;
      m1*3;
    ==>  3,6,
    ==> 18,9
      intmat im[3][2] = intmat(m1*3);
      bigintmat m2 = bigintmat(im); // cast intmat im to bigintmat
      m2;
    ==>  3,6,
    ==> 18,9
      m2*m1+m2;
    ==> 42,30,
    ==> 90,72
      _+4;
    ==> 46, 0,
    ==>  0,76
See Type conversion and casting; bigintmat.

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