When will the "E" icon(the little symbol "E" appears on the left ) appear?
“E” (icon will be ON under the following situations:
1. Overflow Error (Please refer the "Overflow error FAQ")
2. Memory Overflow Error(both Independent Memory and GT Memory)
3. Any number divided by zero
4. Square Root on any Negative Number

In order to clear the "E" symbol, you can either press the C Key or simply press the AC Key to clear the whole operation.

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