@classmethod
    def zeros(cls, r, c=None):
        c = r if c is None else c
        r = as_int(r)
        c = as_int(c)
        return cls._new(r, c, [cls._sympify(0)]*r*c)
Return an r x c matrix of zeros, square if c is omitted.
dataset/ETHPy150Open sympy/sympy/sympy/matrices/dense.py/DenseMatrix.zeros