fx-82TL      fx-9860GII      TI-83

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Error messages

On a TI calculator you can get error messages.

 

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Examples 1

To enter 1 ÷ 0

					ERR:DIVIDE BY 0 1:Quit 2:Goto
1	÷	0	ENTER

or 0 ÷ 0

					ERR:DIVIDE BY 0 1:Quit 2:Goto
0	÷	0	ENTER

or 0⁻¹

					ERR:DIVIDE BY 0 1:Quit 2:Goto
0	x⁻¹		ENTER

Dividing by zero always produces a message.

 

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Example 2

To enter 0⁰

					ERR:DOMAIN 1:Quit 2:Goto
0	∧	0	ENTER

although it is determined by definition that 0⁰ ≝ 1. Take that as a warning.

 

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Example 3

To enter √−2

		√      I						ERR:NONREAL ANS 1:Quit 2:Goto
SHIFT		x²		(–)	2	ENTER

The square root from a negative number always gives a message.

 

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Example 4

To enter 2 (−) 1

					ERR:SYNTAX 1:Quit 2:Goto
2	(–)	1	ENTER

A minus sign cannot be used to subtract.

 

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