OpenMaple/Python/Expression/__eq__ - Maple Help
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__eq__

form equation including Expression

__ne__

form inequation including Expression

__ge__

form non-strict inequality including Expression

__gt__

form strict inequality including Expression

__le__

form non-strict inequality including Expression

__lt__

form strict inequality including Expression

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

x.__eq__(y)

x == y

x.__ne__(y)

x != y

x.__ge__(y)

x >= y

x.__gt__(y)

x > y

x.__le__(y)

x <= y

x.__lt__(y)

x < y

Parameters

x

-

numeric or Expression object (if numeric, then y must be an Expression)

y

-

numeric or Expression object (if numeric, then x must be an Expression)

Description

• 

__eq__ returns an Expression corresponding to an equation formed from x and y.

• 

This function can also be called by simply entering x==y.

• 

__ne__ returns an Expression corresponding to an inequation formed from x and y.

• 

This function can also be called by simply entering x==y.

• 

__ge__, __gt__, __le__, __lt__ return Expressions corresponding to the inequalities >=, >, <=, < respectively. They can also be called simply using the corresponding binary operators in Python (for example x >= y).

• 

Note that an equation is written as == in Python but as = in Maple syntax, while an inequation is written != in Python but as <> in Maple syntax.

Examples

The following interactive session illustrates the use of these operators.

>>> import maple

>>> import maple.namespace

>>> x = maple.namespace.x

>>> y = maple.namespace.y

>>> # It is most natural to use these as infix operators

>>> x == y

x=y

>>> x != y

x<>y

>>> x <= y

x<=y

>>> # They may, however, also be used with the expr.methodName syntax

>>> x.__eq__(y)

x=y

>>> x.__ne__(y)

x <> y

>>> x.__le__(y)

x <> y

See Also

OpenMaple

OpenMaple/Python/API

OpenMaple/Python/Expression