friendlysam.opt.Mul

class friendlysam.opt.Mul

Subtraction operator.

See Operation for a general description of operations.

Parameters:*args – Should be exactly two terms to multiply.

Examples

>>> x = VariableCollection('x')
>>> expr = x(1) * x(2)
>>> expr
<friendlysam.opt.Mul at 0x...>
>>> expr == Mul(x(1), x(2))
True
>>> x(1).value, x(2).value = 2, 3
>>> float(expr)
6.0

Note

There is currently no division operator, but the operator / is overloaded such that x = a / b is equivalent to x = a * (1/b). Hence, you can do simple things like

>>> print(x(1) / 4)
x(1) * 0.25

Mul.create(*args)	Classmethod to create a new object.
Mul.evaluate([replace, evaluators])	Evaluate the expression recursively.

Mul.args	This property holds the arguments of the operation.
Mul.leaves	The leaves of the expression tree.
Mul.value	The concrete value of the expression, if possible.
Mul.variables	This property gives all leaves which are instances of Variable.