public map rev()
{
map c;
c = new map(shape[0], shape[1]);
for (int cl = 0; cl < c.shape[0]; cl++)
{
for (int r = 0; r < c.shape[1]; r++)
{
c.data[cl, r] = -c.data[cl, r];
}
}
return(c);
}
public map change(double a)
{
map c;
c = new map(shape[0], shape[1]);
for (int cl = 0; cl < c.shape[0]; cl++)
{
for (int r = 0; r < c.shape[1]; r++)
{
c.data[cl, r] += a;
}
}
return(c);
}
public static map log(map a)
{
map c;
c = new map(a.shape[0], a.shape[1]);
for (int cl = 0; cl < c.shape[0]; cl++)
{
for (int r = 0; r < c.shape[1]; r++)
{
c.data[cl, r] = Math.Log(a.data[cl, r]);
}
}
return(c);
}
/// <summary>
/// 改变形状
/// </summary>
public map Reshape()
{
map c = new map(shape[0] * shape[1], 1);
double[,] new_data = new double[shape[0] * shape[1], 1];
for (int cl = 0; cl < shape[0]; cl++)
{
for (int r = 0; r < shape[1]; r++)
{
new_data[cl * shape[1] + r, 0] = data[cl, r];
}
}
c.data = new_data;
return(c);
}
public static map mul(map a, map b)
{
map c;
if (a.shape[0] == b.shape[0] && a.shape[1] == b.shape[1])
{
c = new map(a.shape[0], b.shape[1]);
for (int cl = 0; cl < c.shape[0]; cl++)
{
for (int r = 0; r < c.shape[1]; r++)
{
c.data[cl, r] = a.data[cl, r] * b.data[cl, r];
}
}
return(c);
}
else
{
throw new Exception("检查矩阵形状");
}
}
/// <summary>
/// 重载*运算，矩阵乘法
/// </summary>
/// <param name="a">图类型</param>
/// <param name="b">图类型</param>
/// <returns>一个矩阵乘法的结果图</returns>
public static map operator *(map a, map b)
{
map c;
if (a.shape[1] != b.shape[0])
{
throw new Exception("检查矩阵形状");
}
else
{
c = new map(a.shape[0], b.shape[1]);
for (int cl = 0; cl < c.shape[0]; cl++)
{
for (int r = 0; r < c.shape[1]; r++)
{
for (int co = 0; co < a.shape[1]; co++)
{
c.data[cl, r] += a.data[cl, co] * b.data[co, r];
}
}
}
return(c);
}
}
public void init(int columns, int rows)
{
tempmap = new map(columns, rows);
sess.maps[index] = tempmap;
}
