复数的运算 复数共轭 z=x+yi Z=x-yi 2=relo 7=re-i0 0 +2=+3,3=, 22 2 =[Re(=)+[Im(=)2= 豆=2 +=2Re(2),-=2iIm(z) lexu@mail.xidian.edu.cn 矩阵论 8 lexu@mail.xidian.edu.cn 矩 阵 论 8 复数的运算 复数共轭 z x yi = + z x yi = − y x 0 z z i z re θ = i z re− θ = 1 1 1 2 1 2 12 12 2 2 , , z z z z z z zz zz z z + =+ = = z z = 2 22 zz z z z =+= [Re( )] [Im( )] | | z z zz z i z += −= 2Re( ), 2 Im( )