Converting a formula to Rev

[urbaud]

Does anyone know how to write this formula in Rev code? The formula is part of other formulas to figure "Great Circle Distances". Formula: atn(x/sqr(-x * x +1))
I believe atn means arc tangent and sqr would be square root.

[shaosean]

Code: Select all

atan2(x, sqrt(-x * x + 1))

[urbaud]

Shao,
Thanks for your help with the formula. I'm trying to convert VBA code that calculates Great Circle distances. I'm having trouble with another formula, so I hope what you've suggested will work. Thanks again.
Dan

[Klaus]

Hi all,

I was (and still am) very weak in maths , but the original function only has ONE value inside of the parenthesis so I think it should be:
atan(x/sqrt(-x * x +1))


Best from germany

Klaus

[shaosean]

Actually, if you read the description for atan2 you will see that it does the division of the two numbers and respects the signs..

[Klaus]

OK, as I wrote I have even no idea what atan or atan2 means, so sorry if I am wrong.
Sorry for the confusion

[shaosean]

I'll spank you later

[Klaus]

P.S.
Looking for testers?
Here is one, just drop a line

[shaosean]

Apply through the support link (just create a new ticket)