Question about HP 10s Scientific Calculator
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Posted on Jan 02, 2017
SOURCE: HP 15C calculator display showed
When you get the error press any key to suppress the error message. Put the calculator into PROGRAM mode and you will see the line where the error occurred.
Here is what the manual says for ERROR 4 (free translation)
The line number called is not used or does not exist (larger than 448); attempt to load a program line (instruction) where there is not enough space; line label inexistant.
My hunch is that you are attempting to divide by 0: The quantity of which you are taking the reciprocal (inverse function has another meaning) may have a 0 value.
Do not forget to check the input values.
Hope that will help you debug your program
Posted on Oct 14, 2009
The inverse of the common log is the raise 10 to a power. the inverse of the natural log is the exponential. The log and the antilog share the same key, one is accessed directly the other as a seconf/shifted function. Same thing for the natural log (ln) and the exponential.
Posted on Feb 20, 2010
SOURCE: My HP 10s Scientific calculator
You can't charge the calculator off the solar power panel. The solar power panel merely conserves battery power when using the calculator in a bright environment. Try putting in a new battery and see whether the calculator turns on.
Posted on Nov 22, 2010
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