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| Summary | double __asin ( double x); /* number to calculate arc sine of */ |
| Description | The __asin debugger function calculates the arc sine of the floating-point number x. The value of x must be between -1 and 1. The floating-point value returned by __asin is a number in the -π/2 to π/2 range. |
| Return Value | The __asin function returns the arc sine of x. |
| Example | > __asin(0.3); |
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