佛萨奇2.0智能合约开发逻辑demo

简介: This article is compiled and released by **WeChaT: kaifa873**, which is only for reference of project development requirements! **telegram @ sleu88**

This article is compiled and released by WeChaT: kaifa873, which is only for reference of project development requirements! telegram @ sleu88

矩阵定义:

加载numpy库

import numpy as np

from scipy import sparse

创建一个一维数组表示一个行向量

vector_row = np.array([1, 2, 3])

创建一个一维数组表示一个列向量

vector_column = np.array([[1], [2], [3]])

创建一个二维数组表示一个矩阵

matrix1 = np.array([[1, 2], [1, 2], [1, 2]])

利用Numpy内置矩阵数据结构

matrix1_object = np.mat([[1, 2], [1, 2], [1, 2]])

创建一个新的矩阵

matrix2 = np.array([[0, 0], [0, 1], [3, 0]])

创建一个压缩的稀疏行(CSR)矩阵

matrix2_sparse = sparse.csc_matrix(matrix2)

查看稀疏矩阵

print(matrix2_sparse)

创建一个更大的矩阵

matrix_large = np.array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 0, 0, 0, 0, 0, 0, 0],
[3, 0, 0, 0, 0, 0, 0, 0, 0, 0]])

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