mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
Release calc version 2.10.2t30
This commit is contained in:
41
help/exp
Normal file
41
help/exp
Normal file
@@ -0,0 +1,41 @@
|
||||
NAME
|
||||
exp - exponential function
|
||||
|
||||
SYNOPSIS
|
||||
exp(x [,eps])
|
||||
|
||||
TYPES
|
||||
x real or complex
|
||||
eps nonzero real, defaults to epsilon()
|
||||
|
||||
return real or complex
|
||||
|
||||
DESCRIPTION
|
||||
Approximate the exponential function of x by a multiple of epsilon,
|
||||
the error having absolute value less than 0.75 * eps.
|
||||
If n is a positive integer, exp(x, 10^-n) will usually be
|
||||
correct to the n-th decimal place, which, for large positive x
|
||||
will give many significant figures.
|
||||
|
||||
EXAMPLE
|
||||
> print exp(2, 1e-5), exp(2,1e-10), exp(2, 1e-15), exp(2, 1e-20)
|
||||
7.38906 7.3890560989 7.38905609893065 7.38905609893065022723
|
||||
|
||||
> print exp(30, 1e5), exp(30, 1), exp(30, 1e-10)
|
||||
10686474600000 10686474581524 10686474581524.4621469905
|
||||
|
||||
> print exp(-20, 1e-5), exp(-20, 1e-10), exp(-20, 1e-15), exp(-20, 1e-20)
|
||||
0 .0000000021 .000000002061154 .00000000206115362244
|
||||
|
||||
> print exp(1+2i, 1e-5), exp(1+2i, 1e-10)
|
||||
-1.1312+2.47173i -1.1312043838+2.471726672i
|
||||
|
||||
LIMITS
|
||||
x < 100000
|
||||
|
||||
LIBRARY
|
||||
NUMBER *qexp(NUMBER *x, NUMBER *eps)
|
||||
COMPLEX *cexp(COMPLEX *x, NUMBER *eps)
|
||||
|
||||
SEE ALSO
|
||||
ln, cosh, sinh, tanh
|
Reference in New Issue
Block a user