# Mathematical Operations

A how-to guide showing mathematical operations in WOQL

WOQL has a number of mathematical operations that can be performed. These include,

`plus`

, `minus`

, `divide`

, `times`

, `div`

(for integer division), `exp`

and `floor`

.To use these operations you need to

`evaluate`

an arithmetic expression, and then you will be able to bind the result to a variable.For instance:

let v = Vars("result");

evaluate(times(2,3), v.result)

This will store the value of 2 times 3 in the variable

`result`

. The bindings which result from this query are:[ {"result": {"@type":"xsd:decimal", "@value":12}} ]

You can also chain these together, to build up more complicated computations, or use the results obtained by queries to derive new values.

let v = Vars("result1", "result2");

and(evaluate(times(2,3), v.result1),

evaluate(times(v.result1,3), v.result2))

Which results in:

[ {"result1": {"@type":"xsd:decimal", "@value":6},

"result2": {"@type":"xsd:decimal", "@value":18}} ]

Last modified 14d ago