why am I getting 2 different results from these identical derivatives VIs?

[vjm-ndt]

I have written two identical point-by-point derivative calculator VIs and I'm at a lost on why

I'm getting two different results.  I'm not sure what I've missed/missing that is causing this anomaly.

Please take a look at the uploaded VIs (written in LabVIEW 8.0) and let me know what I've done wrong.

Maybe they're not that identical after all.

Any troubleshooting tips or suggestions are welcome!

Thanks,

noviceLabVIEWuser

[JÞB · Accepted solution]

element 1 of array 1 = 0.9998899980

element 1 of array 2 =0.9998900000

Change the format to see the different values

the code is identical