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Type::Unknown -- type for testing variables

Introduction

Type::Unknown represents identifiers and indexed identifiers.

Call(s)

testtype(obj, Type::Unknown)

Parameters

obj - any MuPAD object

Returns

see testtype

Related Functions

testtype, indets

Details

Example 1

Type::Unknown accepts identifiers:

>> testtype(x, Type::Unknown)
                                   TRUE

x[0] is an indexed identifier accepted by Type::Unknown:

>> testtype(x[0], Type::Unknown)
                                   TRUE

The index must be an integer:

>> testtype(x[-1], Type::Unknown),
   testtype(x[1.0], Type::Unknown)
                                TRUE, FALSE

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