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Han · (This post was last modified: 02-04-2014 03:22 AM by Han.)

(02-04-2014 12:41 AM)Mickpc Wrote: So tried to define the equation:

Vmean = Int(0,pi,Vmax*sin(theta)dtheta

I was suprised that it evaluated it from within the define, but it gives the wrong answer. For V = 10 I should get Vmean = 3.18. Instead I get 63.66. I have zero in theta.

It evaluates it correctly in the home view.

Any ideas?

Regards

Mick C

Just a few things on my checklist that may applicable to you:

1. Are you in radian or degree mode
2. Are you in RPN mode? If so, did you quote the algebraic expression? Or did you leave it unquoted?
3. Are the variables in the formula defined (as in, did you store values in them yet)?