WinBin vs PromEdit - problem with "mulOrDivOrBit"
Peter Gargano
peter at techedge.com.au
Wed Nov 1 10:47:38 GMT 2000
I'm still playing with $5D calibration, and making sense of GM formulas.
Some GM calculations use calibration data values A and B, and sensor value
x in a simple formula to derive y like:
y = (A * x) + B . . . formula (1)
Other times, but less frequently, y is derived like:
y = (A / x) + B . . . formula (2)
I believe there's a problem with WinBin's use of the "mulOrDivOrBit" field.
This is the 7th field definition term. Promedit uses it as follows:
mulOrDivOrBit = 0, . . . use formula 1 to evaluate expression
mulOrDivOrBit = 1, . . . use formula 2
whereas WinBin uses it like:
mulOrDivOrBit = 0, . . . evaluate y = (x * A) + B
mulOrDivOrBit = 1, . . . y = (x / A) + B
This unfortunately means that WinBin and PromEdit give different answers.
Peter.
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