mirror of
https://github.com/lcn2/calc.git
synced 2025-08-19 01:13:27 +03:00
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
NAME
|
|
avg - average (arithmetic) mean of values
|
|
|
|
SYNOPSIS
|
|
avg(x_1, x_2, ...)
|
|
|
|
TYPES
|
|
x_1, ... arithmetic or list
|
|
|
|
return as determined by types of items averaged
|
|
|
|
DESCRIPTION
|
|
If there are n non-list arguments x_1, x_2, ..., x_n,
|
|
for which the required additions and division by n are defined,
|
|
avg(x_1, x_2, ..., x_n) returns the value of:
|
|
|
|
(x_1 + x_2 + ... + x_n)/n.
|
|
|
|
If the x_i are real, the result will be a real number; if the
|
|
x_i are real or complex numbers, the result will be a real or complex
|
|
number. If the x_i are summable matrices the result will be a matrix
|
|
of the same size (e.g. if the x_i are all 3 x 4 matrices with real
|
|
entries, the result will be a 3 x 4 matrix with real entries).
|
|
|
|
If an argument x_i is list-valued, e.g. list(y_1, y_2, ...), this
|
|
is treated as contributing y_1, y_2, ... to the list of items to
|
|
be averaged.
|
|
|
|
EXAMPLE
|
|
> print avg(1,2,3,4,5), avg(list(1,2,3,4,5)), avg(1,2,list(3,4,5))
|
|
3 3 3
|
|
|
|
> mat x[2,2] = {1,2,3,4}
|
|
> mat y[2,2] = {1,2,4,8}
|
|
> avg(x,y)
|
|
|
|
mat [2,2] (4 elements, 4 nonzero):
|
|
[0,0] = 1
|
|
[0,1] = 2
|
|
[1,0] = 3.5
|
|
[1,1] = 6
|
|
|
|
LIMITS
|
|
The number of arguments is not to exceed 100.
|
|
|
|
LIBRARY
|
|
none
|
|
|
|
SEE ALSO
|
|
hmean
|