Programming-Idioms

History of Idiom 77 > diff from v9 to v10

Edit summary for version 10 by :

↷

Version 9

2015-09-30, 11:48:25

Version 10

2015-10-29, 14:05:16

Idiom #77 Complex number

Declare a complex x and initialize it with value (3i - 2). Then multiply it by i.

Idiom #77 Complex number

Declare a complex x and initialize it with value (3i - 2). Then multiply it by i.

Perl

Perl

Imports

use Math::Complex;

Imports

use Math::Complex;

Code

my $x = 3*i - 2;
$x *= i;

Code

my $x = 3*i - 2;
$x *= i;

Comments bubble

Simple version: clear, but not efficient. It starts with i, then uses a multiplication and a subtraction to build the complex number.

Comments bubble

Simple version: clear, but not efficient. It starts with i, then uses a multiplication and a subtraction to build the complex number.

Code

x := 3i - 2
x *= 1i

Code

x := 3i - 2
x *= 1i

Comments bubble

complex128 is a built-in type.

1i denotes the imaginary unit i.

Comments bubble

complex128 is a built-in type.

1i denotes the imaginary unit i.

Doc URL

https://golang.org/ref/spec#Numeric_types

Doc URL

https://golang.org/ref/spec#Numeric_types

Demo URL

http://play.golang.org/p/aWVjAibhJZ

Demo URL

http://play.golang.org/p/aWVjAibhJZ

↶ Previous change

Next change ↷

History of Idiom 77 > diff from v9 to v10

Version 9

Version 10

Idiom #77 Complex number

Idiom #77 Complex number

Imports

Imports

Code

Code

Comments bubble

Comments bubble

Code

Code

Comments bubble

Comments bubble

Doc URL

Doc URL

Demo URL

Demo URL

Please choose a nickname before doing this