src/Query/QQ.php
static public function mathOp($strOperation, $param1/** ... */)
    {
        $args = func_get_args();
        $strFunc = array_shift($args);
        return new Node\Math($strFunc, $args);
    }
static public function mathOp($strOperation, $param1/** ... */)
    {
        $args = func_get_args();
        $strFunc = array_shift($args);
        return new Node\Math($strFunc, $args);
    }
static public function mathOp ( $ strOperation , $ param1 /** ... */ ) { $ args = func_get_args ( ) ; $ strFunc = array_shift ( $ args ) ; return new Node \ Math ( $ strFunc , $ args ) ; }
Apply an arbitrary math operation to 2 or more operands. Operands can be scalar values, or column nodes.

@param string $strOperation The operation symbol, like + or *
@param Node\NodeBase|mixed $param1 The first parameter
@return Node\Math The resulting wrapper node
Apply an arbitrary math operation to 2 or more operands . Operands can be scalar values or column nodes .