Anonymous user
Vector products: Difference between revisions
no edit summary
Thundergnat (talk | contribs) (Rename Perl 6 -> Raku, alphabetize, minor clean-up) |
No edit summary |
||
Line 748:
6
#(-267 204 -3)
=={{header|Crystal}}==
<lang ruby>class Vector
property x, y, z
def initialize(@x : Int64, @y : Int64, @z : Int64) end
def dot_product(other : Vector)
(self.x * other.x) + (self.y * other.y) + (self.z * other.z)
end
def cross_product(other : Vector)
Vector.new(self.y * other.z - self.z * other.y,
self.z * other.x - self.x * other.z,
self.x * other.y - self.y * other.x)
end
def scalar_triple_product(b : Vector, c : Vector)
self.dot_product(b.cross_product(c))
end
def vector_triple_product(b : Vector, c : Vector)
self.cross_product(b.cross_product(c))
end
def to_s
"(#{self.x}, #{self.y}, #{self.z})\n"
end
end
a = Vector.new(3, 4, 5)
b = Vector.new(4, 3, 5)
c = Vector.new(-5, -12, -13)
puts "a = #{a.to_s}"
puts "b = #{b.to_s}"
puts "c = #{c.to_s}"
puts "a dot b = #{a.dot_product b}"
puts "a cross b = #{a.cross_product(b).to_s}"
puts "a dot (b cross c) = #{a.scalar_triple_product b, c}"
puts "a cross (b cross c) = #{a.vector_triple_product(b, c).to_s}"</lang>
{{out}}
<pre>a = (3, 4, 5)
b = (4, 3, 5)
c = (-5, -12, -13)
a dot b = 49
a cross b = (5, 5, -7)
a dot (b cross c) = 6
a cross (b cross c) = (-267, 204, -3)</pre>
=={{header|D}}==
| |||