如何在 Ruby 中执行向量加法? [英] How do I perform vector addition in Ruby?

问题描述

我如何在 Ruby 中执行向量加法，以便

How do I perform vector addition in Ruby so that

[100, 100] + [2, 3] 

收益

[102, 103] 

(而不是连接两个数组)?

(instead of joining two arrays)?

或者也可以是另一个操作符，比如

Or it can be another operator too, such as

[100, 100] @ [2, 3] 

或

[100, 100] & [2, 3]

推荐答案

参见 向量 类:

require "matrix"

x = Vector[100, 100]
y = Vector[2, 3]
print x + y

E:\Home> ruby t.rb
Vector[102, 103]

有关向量的其他操作，请参阅 vectorops:

See vectorops for additional operations on vectors:

…以下操作按预期工作

… the following operations work like expected

  v1 = Vector[1,1,1,0,0,0]
  v2 = Vector[1,1,1,1,1,1]

  v1[0..3]
  # -> Vector[1,1,1]

  v1 += v2
  # -> v1 == Vector[2,2,2,1,1,1]

  v1[0..3] += v2[0..3]
  # -> v1 == Vector[2,2,2,0,0,0]

  v1 + 2
  # -> Vector[3,3,3,1,1,1]

另见vectorops.

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