--TEST-- Test return type and value for expected input asin() --INI-- precision = 14 --FILE-- <?php /* * proto float asin(float number) * Function is implemented in ext/standard/math.c */ $file_path = dirname(__FILE__); require($file_path."/allowed_rounding_error.inc"); //output is in degrees echo "asin .5 = "; $asinv1 = 360.0 * asin(0.5) / (2.0 * M_PI ); var_dump($asinv1); if (allowed_rounding_error($asinv1 ,30 )) { echo "Pass\n"; } else { echo "Fail\n"; } echo "asin 0.86602540378444 = "; $asinv2 = 360.0 * asin(0.86602540378444) / (2.0 * M_PI ); var_dump($asinv2); if (allowed_rounding_error($asinv2 ,60 )) { echo "Pass\n"; } else { echo "Fail\n"; } echo "asin 1.0 = "; $asinv3 = 360.0 * asin(1.0) / (2.0 * M_PI ); var_dump($asinv3); if (allowed_rounding_error($asinv3 ,90 )) { echo "Pass\n"; } else { echo "Fail\n"; } echo "asin 0.0 = "; $asinv4 = 360.0 * asin(0.0) / (2.0 * M_PI ); var_dump($asinv4); if (allowed_rounding_error($asinv4 ,0 )) { echo "Pass\n"; } else { echo "Fail\n"; } ?> --EXPECTF-- asin .5 = float(%f) Pass asin 0.86602540378444 = float(%f) Pass asin 1.0 = float(%f) Pass asin 0.0 = float(%f) Pass