我正在使用 mpmath python 库来在某些计算过程中获得精度,但我需要将结果转换为 numpy 本机类型。
更准确地说,我需要在 numpy.ndarray(包含浮点类型)中转换一个 mpmath 矩阵(包含 mpf 对象类型)。
我用原始方法解决了这个问题:
# My input Matrix:
matr = mp.matrix(
[[ '115.80200375', '22.80402473', '13.69453064', '54.28049263'],
[ '22.80402473', '86.14887381', '53.79999432', '42.78548627'],
[ '13.69453064', '53.79999432', '110.9695448' , '37.24270321'],
[ '54.28049263', '42.78548627', '37.24270321', '95.79388469']])
# multiple precision computation
D = MPDBiteration(matr)
# Create a new ndarray
Z = numpy.ndarray((matr.cols,matr.rows),dtype=numpy.float)
# I fill it pretty "manually"
for i in range(0,matr.rows):
for j in range(0,matr.cols):
Z[i,j] = D[i,j] # or float(D[i,j]) seems to work the …Run Code Online (Sandbox Code Playgroud)