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type/form

check for forms

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

type(expr, form)

type(expr, form, int)

Parameters

expr

-

Maple expression

int

-

(optional) positive integer

Description

• 

The command type(expr, form, int) returns true if type(expr, form) is true and wdegree(expr) = int; in other words, if expr is an int-form

• 

The type form includes all expressions declared to be forms through defform, as well as any product or sum that contains at least one term of type form. A power is of type form if the base is of  type form.

• 

The types const, scalar, and form are mutually exclusive.  Any expression can belong to at most one of these types.

• 

This function is part of the difforms package and can only be used after performing with(difforms).

Examples

withdifforms:defforma=const,b=scalar,f=form,g=a

typea+b+f,form

true

(1)

typea+b,form

false

(2)

typefa,form

true

(3)

typeag,form

true

(4)

See Also

type

type/const

type/scalar

 


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