这里是用VB写的数学库。以前用C、C++写的比较多。内容有：复数运算、矩阵运算、解方程、积分微分等。非常有用。-Here is the math library written in VB. Previously used C, C++ to write many of the comparison. Are as follows: plural computing, matrix operations, solution of equations, such as integro-differ

how to sort 2D aray, is nice for vb.net or C# user