?matrixmath_test.cpp?和其头文件实现功能为：

cos(m) 矩阵的余弦

sin(m) 矩阵的正弦

tan(m) 矩阵的正切

acos(m) 矩阵的反余弦

asin(m) 矩阵的反正弦

atan(m) 矩阵的反正切

exp(m) 矩阵的幂函数

log(m) 矩阵的自然对数函数 -? Matrixmath_test.cpp and achieve its header file functions:? Inverse cosine asin acos tangent cosine sin cos (m) matrix (m) of the matrix sine tan (m) matrix (m) of the matrix (m) matrix arcsine Nature atan (m) matrix arctangent exp (m) of the matrix exponential function log (m) a logarithmic function matrix