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Summation register behaviour for Plus42/Free42 question
04-15-2023, 06:38 AM
Post: #2
Steve Simpkin Offline
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RE: Summation register behaviour for Plus42/Free42 question
This error message is a side effect of entering one-variable statistical data when using the Big Stack (NSTK) mode on Free42/Plus42.

To avoid this follow the instructions for One-variable statistics on page 229 of the HP-42S Owner’s Manual.

To enter one-variable statistical data (that is, x-values only), first key in a 0 for the y-value (0 ENTER) and then, for each data point:
1. Key in an x-value.
2. Press the Summation key.


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RE: Summation register behaviour for Plus42/Free42 question - Steve Simpkin - 04-15-2023 06:38 AM



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