Initializing help system before first use

# setcoeff

Purpose
Set the coefficient of a variable or the constant term.
Synopsis
`procedure setcoeff(c:linctr, x:mpvar, r:real)`
`procedure setcoeff(c:linctr, r:real)`
Arguments

c | A linear constraint
x | A decision variable
r | Coefficient or constant term

Example
The following declares a constraint c and then changes some of its terms:

    declarations
     x,y,z: mpvar
    end-declarations

    c:= 4*x + y -z <= 12

    setcoeff(c, y, 2)
    setcoeff(c, 8.1)

The constraint is now 4·x + 2·y - z ≤ -8.1.
Further information
If a variable is given then this procedure sets the coefficient of this variable in the constraint to the given value. Otherwise, it sets the constant term of the constraint.
Related topics
getcoeff.
Parent Topic Predefined functions and procedures

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