SUMMARY: MODULE | CLASS | TYPE | PROC | VAR | CONST | DETAIL: TYPE | PROC | VAR | CONST |
Note: The functions defined here used to use to "*f" versions of the math functions. These turned out to be ISO C functions, and are not available on Mac OSX at the time of writing. Therefore, they were replaced with some C level type cast trickery, which prevent them from being used in a procedure variable, but should work fine otherwise.
Procedure Summary | |
arccos(REAL): REAL Returns the arccosine of x, in the range [0, pi] where -1 <= x <= 1. | |
arccosh(REAL): REAL arccosh(x) is the arc hyperbolic cosine of x. | |
arcsin(REAL): REAL Returns the arcsine of x, in the range [-pi/2, pi/2] where -1 <= x <= 1. | |
arcsinh(REAL): REAL arcsinh(x) is the arc hyperbolic sine of x. | |
arctan(REAL): REAL Returns the arctangent of x, in the range [-pi/2, pi/2] for all x. | |
arctan2(REAL, REAL): REAL arctan2(xn,xd) is the quadrant-correct arc tangent atan(xn/xd). | |
arctanh(REAL): REAL arctanh(x) is the arc hyperbolic tangent of x. | |
cos(REAL): REAL | |
cosh(REAL): REAL cosh(x) is the hyperbolic cosine of x. | |
exp(REAL): REAL Returns the exponential of x for x < Ln(MAX(REAL). | |
ln(REAL): REAL Returns the natural logarithm of x for x > 0. | |
power(REAL, REAL): REAL Returns the value of the number base raised to the power exponent for base > 0. | |
round(REAL): LONGINT Returns the value of x rounded to the nearest integer. | |
sin(REAL): REAL | |
sincos(REAL, VAR REAL, VAR REAL) More efficient sin/cos implementation if both values are needed. | |
sinh(REAL): REAL sinh(x) is the hyperbolic sine of x. | |
sqrt(REAL): REAL Returns the positive square root of x where x >= 0. | |
tan(REAL): REAL Returns the tangent of x where x cannot be an odd multiple of pi/2. | |
tanh(REAL): REAL tanh(x) is the hyperbolic tangent of x. |
Constant Summary | |
exp1 | |
pi |
Procedure Detail |
PROCEDURE arccos(x: REAL): REAL
Returns the arccosine of x, in the range [0, pi] where -1 <= x <= 1.
PROCEDURE arccosh(x: REAL): REAL
arccosh(x) is the arc hyperbolic cosine of x. All arguments greater than or equal to 1 are legal.
PROCEDURE arcsin(x: REAL): REAL
Returns the arcsine of x, in the range [-pi/2, pi/2] where -1 <= x <= 1.
PROCEDURE arcsinh(x: REAL): REAL
arcsinh(x) is the arc hyperbolic sine of x. All arguments are legal.
PROCEDURE arctan(x: REAL): REAL
Returns the arctangent of x, in the range [-pi/2, pi/2] for all x.
PROCEDURE arctan2(xn: REAL; xd: REAL): REAL
arctan2(xn,xd) is the quadrant-correct arc tangent atan(xn/xd). If the denominator xd is zero, then the numerator xn must not be zero. All arguments are legal except xn = xd = 0.
PROCEDURE arctanh(x: REAL): REAL
arctanh(x) is the arc hyperbolic tangent of x. |x| < 1 - sqrt(em), where em is machine epsilon. Note that |x| must not be so close to 1 that the result is less accurate than half precision.
PROCEDURE cos(x: REAL): REAL
PROCEDURE cosh(x: REAL): REAL
cosh(x) is the hyperbolic cosine of x. The argument x must not be so large that exp(|x|) overflows.
PROCEDURE exp(x: REAL): REAL
Returns the exponential of x for x < Ln(MAX(REAL).
PROCEDURE ln(x: REAL): REAL
Returns the natural logarithm of x for x > 0.
PROCEDURE power(base: REAL; exponent: REAL): REAL
Returns the value of the number base raised to the power exponent for base > 0.
PROCEDURE round(x: REAL): LONGINT
Returns the value of x rounded to the nearest integer.
PROCEDURE sin(x: REAL): REAL
PROCEDURE sincos(x: REAL; VAR sin: REAL; VAR cos: REAL)
More efficient sin/cos implementation if both values are needed.
PROCEDURE sinh(x: REAL): REAL
sinh(x) is the hyperbolic sine of x. The argument x must not be so large that exp(|x|) overflows.
PROCEDURE sqrt(x: REAL): REAL
Returns the positive square root of x where x >= 0.
PROCEDURE tan(x: REAL): REAL
Returns the tangent of x where x cannot be an odd multiple of pi/2.
PROCEDURE tanh(x: REAL): REAL
tanh(x) is the hyperbolic tangent of x. All arguments are legal.
Constant Detail |
CONST exp1
CONST pi