The CLP Procedure
LINCON Statement
LINCON linear_constraint-1 <…,linear_constraint-n>;
LINEAR linear_constraint-1 <…,linear_constraint-n>;
where linear_constraint has the form
linear_expression-l type linear_expression-r
where linear_expression has the form
<+|->linear_term-1 <…, (+|-) linear_term-n>
where linear_term has the form
(variable | number<* variable>)
The keyword type can be one of the following:
<, <=, =, >=, >, <>, LT, LE, EQ, GE, GT, NE
The LINCON statement allows for a very general specification of linear constraints. In particular, it allows for specification of the following types of equality or inequality constraints:
For example, the constraint can be expressed as
var x1 x2;
lincon 4 * x1 - 3 * x2 = 5;
and the constraints
can be expressed as
var x1 x2;
lincon 10 <= 10 * x1 - x2,
x1 + 5 * x2 <> 15;
Note that variables can be specified on either side of an equality or inequality in a LINCON statement. Linear constraints can also be specified by using the CONDATA= data table.
Regardless of the specification, you must define the variables by using a VARIABLE statement or implicitly by specifying the USECONDATAVARS= option.
User-specified scalar values are subject to rounding based upon a platform-dependent tolerance.