python必备库 学习笔记 numpy

文章目录numpy创建ndarray创建全0 ndarray创建全1 ndarray创建空 ndarray创建随机 ndarraynumpy.arange(a,b,n).reshape(i,j)numpy.linespace(a,b,n).reshape(i,j)numpy.narray的属性numpy.array.ndimnumpy.array.shapenumpyp.array.sizenumpy.narray运算-+array**nnumpy.sin(array)numpy.cos(array)numpy.tan(array)矩阵乘法numpy.narray逻辑运算array <