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Php log

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PHP function log

This function returns the natural logrithmn of X. For two parameters, X is a number, and Y is a based.

Syntax log

  • X is a number
  • mode (optional) is the base.
log(X);

OR

log(X,Y);

Example 1

<?php
echo log(4);
echo "<br/>";
echo log(8);
?>

Output

1.3862943611199
2.0794415416798

Example 2

<?php
echo log(100,10);
echo "<br/>";
echo log(8,2);
?>

Output

2
3

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