Add option for replacing zeros in matrix with \cdot

pylatex/math.py

@@ -100,7 +100,7 @@ class Matrix(Environment):
  "alignment": "arguments",
  }
 
- def __init__(self, matrix, *, mtype="p", alignment=None):
+ def __init__(self, matrix, *, mtype="p", alignment=None, replace_zeros=False):
  r"""
  Args
  ----
@@ -113,6 +113,8 @@ def __init__(self, matrix, *, mtype="p", alignment=None):
  alignment: str
  How to align the content of the cells in the matrix. This is ``c``
  by default.
+ replace_zeros: bool
+ Should zeros in the matrix be replaced with a cdot.
 
  References
  ----------
@@ -127,6 +129,7 @@ def __init__(self, matrix, *, mtype="p", alignment=None):
  self._mtype = mtype
  if alignment is not None:
  self.latex_name += "*"
+ self._replace_zeros = replace_zeros
 
  super().__init__(arguments=alignment)
 
@@ -146,7 +149,9 @@ def dumps_content(self):
  for (y, x), value in np.ndenumerate(self.matrix):
  if x:
  string += "&"
- string += str(value)
+ string += (
+ str(value) if not (value == 0 and self._replace_zeros) else "\cdot"
+ )
 
  if x == shape[1] - 1 and y != shape[0] - 1:
  string += r"\\" + "%\n"