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  1. <?php
  2. list($x,$y,$z)=array(2,1,1);
  3. $x_y = $x-$y;
  4. $x_z= $x-$z;
  5. $x_y_z = $x-$y-$z;
  6. #$percentage = 1-gmp_fact($x_y)*gmp_fact($x_z)/gmp_fact($x)*gmp_fact($x_y_z);
  7. #echo gmp_strval($percentage);
  8.  
  9. $num = gmp_mul(gmp_fact($x_y),gmp_fact($x_z));
  10. $den = gmp_mul(gmp_fact($x),gmp_fact($x_y_z));
  11. $ns = gmp_strval($num);
  12. $ds = gmp_strval($den);
  13. echo "($ds-$ns)/$ds".PHP_EOL;
Success #stdin #stdout 0.01s 82560KB
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https://ideone.com/7GHZvh
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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