Python operators

The representation of Python operators in Nelson.

Description

Nelson facilitates the utilization of the subsequent overloaded operators:

Python Operator Symbol	Python Methods	Nelson Methods
- (unary operator)	__neg__	uminus, -a
+ (unary operator)	__pos__	uplus, +a
+ (binary operator)	__add__, __radd__	plus, +
- (binary operator)	__sub__, __rsub__	minus, -
* (binary operator)	__mul__, __rmul__	mtimes, *
/ (binary operator)	__truediv__, __rtruediv__	mrdivide, /
== (binary operator)	__eq__	eq, ==
> (binary operator)	__gt__	gt, >
< (binary operator)	__lt__	lt, <
!= (binary operator)	__ne__	ne, ~=
>= (binary operator)	__ge__	ge, >=
<= (binary operator)	__le__	le, <=

isequal builtin is also overloaded to manage python type.

For numpy types, isequal call numpy.array_equal from python.

Others python operators are currently not supported.

Example

pyrun('import numpy as np')
R = pyrun('R = np.asarray(A)', "R", 'A', magic(3))
R_A = R + R
R_B = R * 2
isequal(R_A, R_B)

See also

pyrun.

History

Version	Description
1.5.0	initial version

Author

Allan CORNET