julia矩阵运算

Julia| 复数 (Julia | Complex Numbers)

The syntax to represent the complex number in Julia is:

在Julia中表示复数的语法为：

Syntax:

句法：

    A+Bim

Here, A and B are the values, and im is the global constant which is bound to the complex number i representing the principal square root of -1.

这里， A和B是值， im是全局常数，该常数绑定到表示-1的主平方根的复数i上 。

Example 1:

范例1：

# Julia program to demonstrate the example 
# of complex numbers and operations on it
println(1+2im)
println((1+2im)+(2+4im))
# variables
x = 10+23im
println("x: ", x)
println("typeof(x): ", typeof(x))

Output

输出量

1 + 2im
3 + 6im
x: 10 + 23im
typeof(x): Complex{Int64}

复数的各种运算 (Various operations on Complex Numbers)

Example 2:

范例2：

# Julia program to demonstrate the example 
# of complex numbers and operations on it
x = 1+2im
y = 2.34+78.909im
println("x: ", x)
println("y: ", y)
# operations
add = x+y
sub = x-y
mul = x*y
div = x/y
exp = x^2
# printing
println("add: ", add)
println("sub: ", sub)
println("mul: ", mul)
println("div: ", div)
println("exp: ", exp)

Output

输出量

x: 1 + 2im
y: 2.34 + 78.909im
add: 3.34 + 80.909im
sub: -1.3399999999999999 - 76.909im
mul: -155.478 + 83.589im
div: 0.02569885734584168 - 0.011910741155137315im
exp: -3 + 4im

Reference: Julia Complex Numbers

参考： Julia复数

翻译自: https://www.includehelp.com/julia/complex-numbers-and-operations.aspx

julia矩阵运算