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MCP Installation Troubleshooting: Miscellaneous Problems
USING LOTUS 1-2-3 TO TEST YOUR MATH COPROCESSOR
Here's a quick and easy method for testing your math coprocessor using
Lotus 1-2-3:
1. Enter this formula in cell A1: @exp(@rand)
2. Copy the formula to a large range with this command: /C A1..Z400
3. Press F9 and time how long it takes the spreadsheet to
recalculate.
In an 8 MHz computer, it should take about 1 minute without a math
coprocessor and about 10 seconds with a math coprocessor. In a 4.77 MHz
computer, it should take about 3 minutes to recalculate without a math
coprocessor and about 27 seconds with a coprocessor. The difference in
time is noticeable even without a stopwatch.
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