PHP math functions

1. abs(n)
   Return absolute value
2. base_convert(n, from, to)
   Convert a number from one base to another
3. ceil(n)
   Round up number nearest integer
4. floor(n)
   Round down a number nearest integer
5. sin(n)
   Return sine of a number
6. cos(n)
   Return cosine of a number
7. tan(n)
   Return tangent of a number
8. hypot(b, h)
   Calculate the hypotenuse  of right angle triangle
9. log(n)
   Return natural logarithm of a number
10. log10(n)
    Return the base 10 logarithm of a number
11. max(arg1, arg2)
    Return max value number from an array
12. min(arg1, arg2)
    Return min value number from an array
13. mt_rand(from, to)
    Generate a random number it is fast than rand
14. pi()
    Return pi value
15. pow(base, exponent)
     Return power of a number
16. rand(from, to)
    Return random value
17. round(n)
    Round a floating-point number
18. sqrt(n)
    Return square root of a given number

example

<?php 

echo "abs <br>";
echo abs(-90);
echo "<br>";


echo "base_convert <br>";
echo base_convert(5, 10, 2);
echo "<br>";


echo "ceil <br>";
echo ceil(1.2);
echo "<br>";


echo "floor <br>";
echo floor(1.9);
echo "<br>";


echo "sin <br>";
echo sin(90);
echo "<br>";


echo "cos <br>";
echo cos(90);
echo "<br>";


echo "tan <br>";
echo tan(90);
echo "<br>";


echo "hypot <br>";
echo hypot(2, 3);
echo "<br>";


echo "log <br>";
echo log(10);
echo "<br>";


echo "log10 <br>";
echo log10(10);
echo "<br>";


echo "max <br>";
echo max([1,2,3,4,5]);
echo "<br>";


echo "min <br>";
echo min([1,2,3,4,5]);
echo "<br>";


echo "mt_rand <br>";
echo mt_rand(1,1000);
echo "<br>";


echo "pi <br>";
echo pi();
echo "<br>";


echo "pow <br>";
echo pow(2, 3);
echo "<br>";


echo "rand <br>";
echo rand(1, 1000);
echo "<br>";


echo "round <br>";
echo round(3.12);
echo "<br>";


echo "sqrt <br>";
echo sqrt(9);
echo "<br>";

?>