/**
* Print a NumberNode.
*
* @param NumerNode $node
*/
public function visitNumberNode(NumberNode $node)
{
$val = $node->getValue();
return "{$val}:float";
}
/**
* Evaluate a NumberNode
*
* Retuns the value of an NumberNode
*
* @param NumberNode $node AST to be evaluated
* @retval float
*/
public function visitNumberNode(NumberNode $node)
{
return Complex::create($node->getValue(), 0);
}
/**
* Evaluate a NumberNode
*
* Retuns the value of an NumberNode
*
* @param NumberNode $node AST to be evaluated
* @retval float
*/
public function visitNumberNode(NumberNode $node)
{
return $node->getValue();
}
public function testCanComputeComplexity()
{
$node = new NumberNode(1);
$this->assertEquals($node->complexity(), 2);
$node = new IntegerNode(1);
$this->assertEquals($node->complexity(), 1);
$node = new RationalNode(1, 2);
$this->assertEquals($node->complexity(), 2);
$node = new VariableNode('x');
$this->assertEquals($node->complexity(), 1);
$node = new ConstantNode('pi');
$this->assertEquals($node->complexity(), 1);
$f = $this->parser->parse('x+y');
$this->assertEquals($f->complexity(), 4);
$f = $this->parser->parse('x-y');
$this->assertEquals($f->complexity(), 4);
$f = $this->parser->parse('x*y');
$this->assertEquals($f->complexity(), 4);
$f = $this->parser->parse('x/y');
$this->assertEquals($f->complexity(), 6);
$f = $this->parser->parse('x^y');
$this->assertEquals($f->complexity(), 10);
$f = $this->parser->parse('sin(x)');
$this->assertEquals($f->complexity(), 6);
$f = $this->parser->parse('x + sin(x^2)');
$this->assertEquals($f->complexity(), 18);
$node = new SubExpressionNode('(');
$this->assertEquals($node->complexity(), 1000);
}