Error Codes and Messages

A function did not return a value

A test did not resolve to TRUE or FALSE.

Generally, undefined variables cannot be compared. For example, the test If a<b will cause this error if either a or b is undefined when the If statement is executed.

Argument cannot be a folder name.

Argument error

Argument mismatch

Two or more arguments must be of the same type.

Argument must be a Boolean expression or integer

Argument must be a decimal number

Argument must be a list

Argument must be a matrix

Argument must be a string

Argument must be a variable name.

Make sure that the name:

See the Calculator section in the documentation for more details.

Argument must be an expression

Batteries too low for sending or receiving

Install new batteries before sending or receiving.

Bound

The lower bound must be less than the upper bound to define the search interval.

Break

The d or c key was pressed during a long calculation or during program execution.

Circular definition

This message is displayed to avoid running out of memory during infinite replacement of variable values during simplification. For example, a+1->a, where a is an undefined variable, will cause this error.

Constraint expression invalid

For example, solve(3x^2-4=0,x) | x<0 or x>5 would produce this error message because the constraint is separated by “or” instead of “and.”

Invalid Data type

An argument is of the wrong data type.

Dependent limit

Dimension

A list or matrix index is not valid. For example, if the list {1,2,3,4} is stored in L1, then L1[5] is a dimension error because L1 only contains four elements.

Dimension Error. Not enough elements in the lists.

Dimension mismatch

Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements.

Divide by zero

Domain error

An argument must be in a specified domain. For example, rand(0) is not valid.

Duplicate variable name

Else and ElseIf invalid outside of If...EndIf block

EndTry is missing the matching Else statement

Excessive iteration

Expected 2 or 3-element list or matrix

The first argument of nSolve must be an equation in a single variable. It cannot contain a non-valued variable other than the variable of interest.

First argument of solve or cSolve must be an equation or inequality

For example, solve(3x^2-4,x) is invalid because the first argument is not an equation.

Inconsistent units

Index out of range

Indirection string is not a valid variable name

Undefined Ans

Either the previous calculation did not create Ans, or no previous calculation was entered.

Invalid assignment

Invalid assignment value

Invalid command

Invalid for the current mode settings

Invalid guess

Invalid implied multiply

For example, x(x+1) is invalid; whereas, x*(x+1) is the correct syntax. This is to avoid confusion between implied multiplication and function calls.

Invalid in a function or current expression

Only certain commands are valid in a user-defined function.

Invalid in Try..EndTry block

Invalid list or matrix

Invalid outside function or program

A number of commands are not valid outside a function or program. For example, Local cannot be used unless it is in a function or program.

Invalid outside Loop..EndLoop, For..EndFor, or While..EndWhile blocks

For example, the Exit command is valid only inside these loop blocks.

Invalid outside program

Invalid pathname

For example, \var is invalid.

Invalid polar complex

Invalid table

Invalid use of units

Invalid variable name in a Local statement

Invalid variable or function name

Invalid variable reference

Invalid vector syntax

Link transmission

A transmission between two units was not completed. Verify that the connecting cable is connected firmly to both ends.

Matrix not diagonalizable

Low Memory

1. Delete some data in this document

2. Save and close this document

If 1 and 2 fail, pull out and re-insert batteries

Resource exhaustion

Resource exhaustion

Missing (

Missing )

Missing “

Missing ]

Missing }

Missing start or end of block syntax

Missing Then in the If..EndIf block

Name is not a function or program

No functions selected

No solution found

Non-real result

For example, if the software is in the Real setting, √(-1) is invalid.

To allow complex results, change the “Real or Complex” Mode Setting to RECTANGULAR or POLAR.

Overflow

Program not found

A program reference inside another program could not be found in the provided path during execution.

Rand type functions not allowed in graphing

Recursion too deep

Reserved name or system variable

Argument error

Median-median model could not be applied to data set.

Syntax error

Text not found

Too few arguments

The function or command is missing one or more arguments.

Too many arguments

The expression or equation contains an excessive number of arguments and cannot be evaluated.

Too many subscripts

Too many undefined variables

Variable is not defined

No value is assigned to variable. Use one of the following commands:

to assign values to variables.

Unlicensed OS

Variable in use so references or changes are not allowed

Variable is protected

Invalid variable name

Make sure that the name does not exceed the length limitations

Window variables domain

Zoom

Internal error

Protected memory violation

Unsupported function. This function requires Computer Algebra System. Try TI‑Nspire™ CAS.

Unsupported operator. This operator requires Computer Algebra System. Try TI‑Nspire™ CAS.

Unsupported feature. This operator requires Computer Algebra System. Try TI‑Nspire™ CAS.

Input argument must be numeric. Only inputs containing numeric values are allowed.

Trig function argument too big for accurate reduction

Unsupported use of Ans.This application does not support Ans.

Non-real calculation

For example, if the software is in the Real setting, √(-1) is invalid.

To allow complex results, change the “Real or Complex” Mode Setting to RECTANGULAR or POLAR.

Invalid bounds

No sign change

Argument cannot be a list or matrix

Argument error

The first argument must be a polynomial expression in the second argument. If the second argument is omitted, the software attempts to select a default.

Argument error

The first two arguments must be polynomial expressions in the third argument. If the third argument is omitted, the software attempts to select a default.

Invalid library pathname

A pathname must be in the form xxx\yyy, where:

See the Library section in the documentation for more details.

Invalid use of library pathname

Invalid library variable name.

Make sure that the name:

See the Library section in the documentation for more details.

Library document not found:

See the Library section in the documentation for more details.

Library variable not found:

See the Library section in the documentation for more details.

Invalid library shortcut name.

Make sure that the name:

See the Library section in the documentation for more details.

Domain error:

The tangentLine and normalLine functions support real-valued functions only.

Domain error.

Trigonometric conversion operators are not supported in Degree or Gradian angle modes.

Argument Error

Use a system of linear equations.

Example of a system of two linear equations with variables x and y:

  3x+7y=5

  2y-5x=-1

Argument Error:

The first argument of nfMin or nfMax must be an expression in a single variable. It cannot contain a non-valued variable other than the variable of interest.

Argument Error

Order of the derivative must be equal to 1 or 2.

Argument Error

Use a polynomial in expanded form in one variable.

Argument Error

Use a polynomial in one variable.

Argument Error

The coefficients of the polynomial must evaluate to numeric values.

Argument error:

A function could not be evaluated for one or more of its arguments.