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type -- the type of an object

Introduction

type(object) returns the type of the object.

Call(s)

type(object)

Parameters

object - any MuPAD object

Returns

a domain type of type DOM_DOMAIN or a character string.

Overloadable:

object

Related Functions

coerce, domtype, hastype, testtype, Type

Details

Example 1

If an object is not an expression, its type equals its domain type:

>> type(3)
                                  DOM_INT

Example 2

The operator of a sum is _plus; the type slot of that operator is "_plus":

>> type(x + y*z)
                                  "_plus"

type evaluates its argument: thereby, the difference of x and y becomes the sum of x and (-1)*y. Its type is not "_subtract", but "_plus":

>> type(x - y)
                                  "_plus"

Example 3

If the operator of an expression is not a function environment having a type slot, the expression is of type "function":

>> type(f(2))
                                "function"

Example 4

The following call to type is not regarded as a call with two arguments, because expression sequences in the argument are not flattened:

>> type((2, 3))
                                "_exprseq"

Changes




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