Field Guide/Fix a problem/Syntax & domain errors
Core3 min

Fix ERR:SYNTAX or ERR:DOMAIN

The calculator reports ERR:SYNTAX or ERR:DOMAIN.

01

Press these keys

2:Goto←→DEL

Step 1 of 4. Press 2:Goto.

02

Walkthrough

  1. 1
    Choose Goto

    Select 2:Goto when offered to return near the detected problem.

  2. 2
    For SYNTAX

    Check brackets, commas, operators, negative key use and missing arguments.

  3. 3
    For DOMAIN

    Check whether the input is mathematically allowed, such as √(negative) in REAL mode or log(non-positive).

03

Worked example

Evaluate log(−2) in REAL mode.

AnswerThere is no real logarithm of −2.