Determinant and permanent: Difference between revisions
Added Sidef
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permanent: 6778800
</pre>
=={{header|Sidef}}==
The `determinant` method is provided by the Array class.
{{trans|Ruby}}
<lang ruby>class Array {
method permanent {
var r = @^self.len
var sum = 0
r.permutations { |*a|
var prod = 1
[a,r].zip {|row,col| prod *= self[row][col] }
sum += prod
}
return sum
}
}
var m1 = [[1,2],[3,4]]
var m2 = [[1, 2, 3, 4],
[4, 5, 6, 7],
[7, 8, 9, 10],
[10, 11, 12, 13]]
var m3 = [[0, 1, 2, 3, 4],
[5, 6, 7, 8, 9],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19],
[20, 21, 22, 23, 24]]
[m1, m2, m3].each { |m|
say "determinant:\t #{m.determinant}\npermanent:\t #{m.permanent}\n"
}</lang>
{{out}}
<pre>determinant: -2
permanent: 10
determinant: 0
permanent: 29556
determinant: 0
permanent: 6778800
</pre>
=={{header|Simula}}==
<lang simula>! MATRIX ARITHMETIC ;
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