Log

1. Function

Log displays important messages for calculations performed.

Fig. 1. Log.

2. Options

In Preferences you can adjust the behavior of the Log window.

3. How to use

Log displays Errors in red and Warnings in blue. If some Error encountered, calculator stops evaluating, because cannot proceed. Warnings are information messages.

Use Context column of the Log window to locate the source of the Error or Warning.

3. Messages

All the Log messages fall into two groups: Errors and Warnings. If Error occurs, calculations cannot be completed. Warnings are not that serious, but you are to take them into account cosidering the result.

	Message	Category	Description
1	Domain	Error	Function is not defined for the input argument(s).
2	Overflow	Error	Operation or function call resulted in too big number, that cannot be presented in double precision.
3	Singularity	Error	Function has singularity for the input argument.
4	Syntax	Error	The expression cannot be evaluated, because it is entered the wrong way.
5	Not initialized	Warning	Not initialized memory recalled, such memory treated as keeping 0. Usually means, you mistyped the memory cell name.
6	Partial precision loss	Warning	Precision is lost partially, so, the result can be used for estimation only.
7	Total precision loss	Warning	Precision is lost, so, the result cannot be trusted.
8	Underflow	Warning	Operator or function call resulted in too small number, that cannot be presented in double precision, so it is replaced with 0.

Table. 1. Log messages.

	Window 1 Keypad
	Window 2 Log
	Window 3 Memory
	Window 4 Statistics