mirror of
https://github.com/lcn2/calc.git
synced 2025-08-19 01:13:27 +03:00
43 lines
1.0 KiB
Plaintext
43 lines
1.0 KiB
Plaintext
NAME
|
|
frac - return the fractional part of a number or of numbers in a value
|
|
|
|
SYNOPSIS
|
|
frac(x)
|
|
|
|
TYPES
|
|
If x is an object of type xx, frac(x) requires xx_frac to have been
|
|
defined; other conditions on x and the value returned depend on
|
|
the definition of xx_frac.
|
|
|
|
For other x:
|
|
|
|
x number (real or complex), matrix
|
|
|
|
return number or matrix
|
|
|
|
DESCRIPTION
|
|
If x is an integer, frac(x) returns zero. For other real values of x,
|
|
frac(x) returns the real number f for which x = i + f, where i is an
|
|
integer, sgn(f) = sgn(x), and abs(f) < 1.
|
|
|
|
If x is complex, frac(x) returns frac(re(x)) + frac(im(x))*1i.
|
|
|
|
If x is a matrix, frac(x) returns the matrix m with the same structure
|
|
as x in which m[[i]] = frac(x[[i]]).
|
|
|
|
EXAMPLE
|
|
> c = config("mode", "frac")
|
|
> print frac(3), frac(22/7), frac(27/7), frac(-3.125), frac(2.15 - 3.25i)
|
|
0 1/7 6/7 -1/8 3/20-1i/4
|
|
|
|
LIMITS
|
|
none
|
|
|
|
LIBRARY
|
|
NUMBER *qfrac(NUMBER *x)
|
|
COMPLEX *cfrac(COMPLEX *x)
|
|
MATRIX *matfrac(MATRIX *x)
|
|
|
|
SEE ALSO
|
|
int, ceil, floor
|