* matrix_str: Added support for complex array.

master
Wirawan Purwanto 8 years ago
parent bec94cb8c0
commit 17c701edee
  1. 31
      text_tools.py

@ -67,13 +67,40 @@ def vector_str(M, fmt="%22.15g", V=False, prefix="", suffix=""):
else:
return prefix + " ".join([ fmt % m for m in M ]) + suffix
def matrix_str(M, fmt="%22.15g", prefix="", suffix=""):
def matrix_str(M, fmt=None, prefix="", suffix=""):
"""Prints a matrix in a textual format.
Applicable for integer, float, and complex 2-D arrays.
COMPLEX NUMBER SUPPORT
By default, we print in full precision and in python-friendly format, like:
(+3.200000000000000e+00+4.700000000000000e+00j)
To print in C++ and Fortran friendly format, use:
>>> A_str = text_tools.matrix_str(A, '(%+#22.15e,%+#22.15e)')
The resulting output will be:
(+3.200000000000000e+00,+4.700000000000000e+00)
"""
linesep = suffix + "\n" + prefix
if isinstance(M, numpy.matrix):
M = numpy.asarray(M)
elif not isinstance(M, numpy.ndarray):
M = numpy.asarray(M)
if len(M.shape) != 2:
raise ValueError, "Wrong shape: expecting a two-dimensional array."
return prefix + linesep.join([ " ".join([ fmt % c for c in R ]) for R in M ]) + suffix
if numpy.iscomplex(M[0,0]):
if fmt is None:
fmt = "(%+22.15e%+22.15ej)"
mkfmt = lambda z: fmt % (z.real, z.imag)
return prefix + linesep.join([ " ".join([ mkfmt(c) for c in R ]) for R in M ]) + suffix
else:
if fmt is None:
fmt = "%22.15g"
return prefix + linesep.join([ " ".join([ fmt % c for c in R ]) for R in M ]) + suffix
def str_indent(text, indent=" "*4):

Loading…
Cancel
Save