Python复数

# 创建复数对象
x = complex(2, 3)
y = 4 + 5j
z = 6 - 7j

print(x, y, z)

(2+3j) (4+5j) (6-7j)

# 获取复数对象的实部和虚部
x = complex(2, 3)
real_part = x.real
imaginary_part = x.imag

print(real_part, imaginary_part)

2.0 3.0

# 获取复数对象的共轭
x = complex(2, 3)
conjugate = x.conjugate()

print(conjugate)

(2-3j)

# 复数加法
x = complex(2, 3)
y = 4 + 5j
result = x + y

print(result)

(6+8j)

# 复数乘法
x = complex(2, 3)
y = 4 + 5j
result = x * y

print(result)

(-7+22j)

# 复数除法
x = complex(2, 3)
y = 4 + 5j
result = x / y

print(result)

(0.5609756097560976+0.0487804878048781j)

import numpy as np

# 生成一个复数序列
x = np.array([1 + 2j, 3 - 4j, 5 + 6j])

# 计算频谱
fft_x = np.fft.fft(x)

print(fft_x)

[ 9.        +4.j         -1.5      -1.5j       -1.5      -1.5j       ]