Texas Instruments TMS34010

atan
Syntax #include <math.h>
double atan(x)
double X;
Defined in atan.obj in rts .lib
Polar Arc Tangent
Description The atan function returns the arc tangent of a floating-point argument, x.
The return value is an angle in the rang~ [-n/2,n/2] radians.
Exalnple double realval, radians;
realval 0.0;
radians = atan(realval); /* return value
a */
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