todo

来自「该文件为c++的数学函数库!是一个非常有用的编程工具.它含有各种数学函数,为科学」· 代码 · 共 6 行

use macros so that all complex arithmetic can use native complex types if compiler supports them

make sure double/float are replaced by BASE everywhere

gbmv_c  :  use conj*imag instead of having branches form Trans & ConjTrans