How to use asin in PHP
This article describe about asin() Function in PHP.
This function returns the arcsine of a number as a numeric value between -PI/2 and PI/2 radians.
||Required. And must be numeric value between -1 to 1.
Note: If the range outside between -1 to 1 then browser return -1.#IND.
echo(asin(0.44) . "<br />");
echo(asin(0) . "<br />");
echo(asin(-1) . "<br />");
echo(asin(1) . "<br />");
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