CCS C Compiler Manual PCB / PCM / PCH

Also See:
labs()
sin( ) cos( ) tan( ) asin( ) acos() atan() sinh() cosh() tanh()
atan2()
Syntax:
Parameters:
Returns:
val = sin (rad)
val = cos (rad)
val = tan (rad)
rad = asin (val)
rad1 = acos (val)
rad = atan (val)
rad2=atan2(val, val)
result=sinh(value)
result=cosh(value)
result=tanh(value)
rad is a float representing an angle in Radians -2pi to 2pi.
val is a float with the range -1.0 to 1.0.
Value is a float
rad is a float representing an angle in Radians -pi/2 to pi/2
val is a float with the range -1.0 to 1.0.
rad1 is a float representing an angle in Radians 0 to pi
rad2 is a float representing an angle in Radians -pi to pi
Result is a float
Function:
These functions perform basic Trigonometric functions.
sin returns the sine value of the parameter (measured in radians)
cos returns the cosine value of the parameter (measured in radians)
tan returns the tangent value of the parameter (measured in radians)
asin returns the arc sine value in the range [-pi/2,+pi/2] radians
acos returns the arc cosine value in the range[0,pi] radians
atan returns the arc tangent value in the range [-pi/2,+pi/2] radians
atan2 returns the arc tangent of y/x in the range [-pi,+pi] radians
sinh returns the hyperbolic sine of x
cosh returns the hyperbolic cosine of x
tanh returns the hyperbolic tangent of x
Note on error handling:
If "errno.h" is included then the domain and range errors are stored in the errno
variable. The user can check the errno to see if an error has occurred and print the
error using the perror function.
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