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Type::SequenceOf -- type for testing sequences

Introduction

With Type::SequenceOf, sequences with specified objects can be identified.

Call(s)

testtype(obj, Type::SequenceOf(obj_type <, min_nr <, max_nr>>))

Parameters

obj - any MuPAD object
obj_type - the type of the objects; a type can be an object of the library Type or one of the possible return values of domtype and type
min_nr - the minimal number of objects as nonnegative integer
max - the maximal number of objects as nonnegative integer

Returns

see testtype

Related Functions

_exprseq, testtype, Type::ListOf

Details

Example 1

Is the given sequence a sequence of identifiers?

>> testtype((a, b, c, d, e, f), Type::SequenceOf(DOM_IDENT))
                                   TRUE

Is the given sequence a sequence of at least five real numbers?

>> testtype((0, 0.5, 1, 1.5, 2, 2.5, 3), Type::SequenceOf(Type::Real, 5))
                                   TRUE

Changes




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