Error Conditions; In Case Of Difficulty - Texas Instruments BA-20 Profit Manager Quick Reference Manual

Error Conditions

An error/overflow condition is indicated by E in the display.
Press R once to clear the error, press R twice or
J once to clear the calculator. Do not continue
calculations after you have cleared the overflow condition
by pressing R once.
An error occurs when you attempt to:
¦
Enter data into a cost, sell, or margin calculation using
an incorrect key sequence (page 8).
¦
Enter an integer with more than 10 digits (page 4).
¦
Perform a calculation that results in an overflow more
than 10 digits to the left of the decimal point (page 3).
¦
Add a number to memory that would exceed its 10-digit
capacity (page 9).
¦
Divide a number by zero.
¦
Find the square root of a negative number.

In Case of Difficulty

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Expose the calculator to adequate light.
¦
Review the instructions and repeat the calculation.
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