User manual

mikroBasic PRO for dsPIC30/33 and PIC24
MikroElektronika
687
atan
Prototype
sub function atan(dim arg as oat) as oat
Description Function computes the arc tangent of parameter f; that is, the value whose tangent is f. The return value
is in radians, between -Π/2 and Π/2 (inclusive).
Example
res = atan(1.0) ‘ res = 7.853982e-1
atan2
Prototype
sub function atan2(dim y as oat, dim x as oat) as oat
Description This is the two-argument arc tangent function. It is similar to computing the arc tangent of y/x, except
that the signs of both arguments are used to determine the quadrant of the result and x is permitted to
be zero. The return value is in radians, between -Π and Π (inclusive).
Example
res = atan2(2., 1.) ‘ res = 4.636475e-1
ceil
Prototype
sub function ceil(dim x as oat) as oat
Description Function returns value of parameter x rounded up to the next whole number.
Example
res = ceil(0.5) ‘ res = 1.000000
cos
Prototype
sub function cos(dim arg as oat) as oat
Description Function returns the cosine of f in radians. The return value is from -1 to 1.
Example
res = cos(PI/3.) ‘ res = 0.500008
cosh
Prototype
sub function cosh(dim x as oat) as oat
Description Function returns the hyperbolic cosine of x, dened mathematically as (e
x
+e
-x
)/2. If the value of x is
too large (if overow occurs), the function fails.
Example
res = cosh(PI/3.) ‘ res = 1.600286
eval_poly
Prototype
sub function eval_poly(dim x as oat, dim byref d as array[10] of oat, dim
n as integer) as oat
Description Function Calculates polynom for number x, with coefcients stored in d[], for degree n.