Former Member

### change of number over time

is there any standard FM to calculate change of number over time .

where Z is my number.i have to find change of Z over a time period.

i.e I have to find dZ.

Any idea.

Message was edited by:

Maya Vinothini

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• Former Member
Oct 09, 2007 at 02:39 PM

any idea to solve this issue..

Thanks..

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• Former Member
Oct 09, 2007 at 02:46 PM

DZ = Z2 - Z1???

Rob

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• Oct 09, 2007 at 02:47 PM

can you be a bit more specifi? what number? how does it change?

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• Former Member
Oct 09, 2007 at 03:00 PM

Do u mean the differenciation operation??

if yes try to do this way.

do 10000 times.

• calculate the change over the dependent variable in small intervals.

• of independent variable.

dz = dz+ (d2-d1 ) " accumulate values

enddo.

dz = dz/10000. " divide by the number of times.