src/module/kronecker [ Modules ]
NAME
Module kronecker
USAGE
use kronecker
DESCRIPTION
This module contains two functions delta and deltab which correspond
respectively to the Kronecker symbol \delta_{ij}
and 1-\delta_{ij}. These two functions have two integer arguments and
return an integer
OUTPUT
This module exports two functions: * delta -- the Kronecker symbol * deltab -- 1-delta
USES
No uses
src/module/kronecker/delta [ Functions ]
NAME
Function delta
USAGE
integer = delta(i,j)
DESCRIPTION
This is the Kronecker symbol \delta_{ij}
INPUTS
* i -- an integer * j -- an integer
SIDE EFFECTS
No side effect
RETURN VALUE
It returns an integer 0 or 1
EXAMPLE
k = delta(2,3) --> k = 0 k = delta(3,3) --> k = 1
src/module/kronecker/deltab [ Functions ]
NAME
Function deltab
USAGE
integer = deltab(i,j)
DESCRIPTION
This is one minus the Kronecker symbol, 1-\delta_{ij}
INPUTS
* i -- an integer * j -- an integer
SIDE EFFECTS
No side effect
RETURN VALUE
It returns an integer 0 or 1
EXAMPLE
k = deltab(2,3) --> k = 1 k = deltab(3,3) --> k = 0