type/listlist - Maple Programming Help

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type/listlist

Check for a list of lists

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

type(expr, listlist)

type(expr, listlist(K))

Parameters

expr

-

any expression

K

-

type name

Description

• 

The function type/listlist returns true if expr is a nonempty list of lists, with each inner list having the same number of elements. Otherwise, it returns false.

• 

If a type is given, then an additional check will be made to ensure that all the operands of the inner lists are of the given type.

Examples

type,'listlist'

false

(1)

type1,2,3,4,'listlist'

true

(2)

type1,2,3,4,'listlistinteger'

true

(3)

type8,7,6,12,'listlist'

false

(4)

type1,2,3,4,5,'listlist'

false

(5)

type,'listlist'

true

(6)

typea,b,c,d,'listlist'

true

(7)

typea,b,c,d,'listlistinteger'

false

(8)

See Also

convert/list

list

type

type/list

type/Matrix