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Alfio

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10-06-2000 03:53 AM

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I have same "big" equations for density calculation with upper 65 coefficients

and 3 o more inputs variables.

Everything goes well and fast in 5.1.1, when I open this VI in LV 6i there

is automatically conversion

of exponential symbol (from "^" to "**") with non apparent problem,

but the result of equation is WRONG, very, very incorrect (from 0 in 5.1.1

to same negative milliard...).

I tried with more different equations and the results are similar...

For the last: when I re-convert my VI in version 5 and run it in LV 5.1.1

everything re-work PERFECTLY! Strange.

Have I found a "terrible" BUG?

Someone have found the same problem?

Do you have some ide

a?

I will wait some news from you.:-)

Thanks for reading this LONG news.

Bye, bye.

Alfio.

Ricardo Diniz

Member

10-09-2000 02:40 PM

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>>I have found a "serious" problem converting VI from LV 5.1.1 to 6i:>I have

same "big" equations for density calculation with upper 65 coefficients>and

3 o more inputs variables.>Everything goes well and fast in 5.1.1, when I

open this VI in LV 6i there>is automatically conversion>of exponential symbol

(from "^" to "**") with non apparent problem,>but the result of equation

is WRONG, very, very incorrect (from 0 in 5.1.1>to same negative milliard...).>I

tried with more different equations and the results are similar...>For the

last: when I re-convert my VI in version 5 and run it in LV 5.1.1>everything

re-work PERFECTLY! Strange.>Have I found a "terrible" BUG?>Someone have found

the same problem?>Do you have some idea?

>I will wait some news from you.:-)>Thanks

for reading this LONG news. >Bye, bye.>Alfio.

Hi Alfio

Some times ago I had a simmilar problem but with labview 4.x. My equation

in the

formula node was (and still is) very large too but the problem was related

with the

x^2 terms. When these terms were changed with x*x the vi worked fine. Very

strange.....Also, this problem did not appear with small equations. Try a

smaller equation and see what happens. And more: with LV 5.1 (I am using

this version)

there is no problem.

Good luck.

Ricardo.