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PHP printing Yang Hui triangle graphic tutorial

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2016-07-25 09:12:581825browse

PHP prints Yang Hui's triangle as shown in the picture: PHP printing Yang Hui triangle graphic tutorial

Use PHP programming to generate any row of Yang Hui triangles.

  2. function yanghui($line)
  3. {
  4. echo "";
  5. for($i=1;$i {
  6. echo "
    7. ";
  7. for($j=1;$j {
  8. $yh[$i][1]=1;
  9. if ($i==$j) $yh[$i][$j]=1;
  10. else $yh[$i][$j]=$yh[$i-1][$j-1]+$yh[$i-1][ $j];
  11. echo "
    12. ";
  12. }
  13. echo "
    14. ";
  14. }
  15. echo "
    16. ";
  16. echo $yh[$i][$j];
  17. echo "
    18.
    ";
  18. }
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