[ATM] found my calc error...parabola

[Norm Prince]

There was a fundimental error in the math i used on the spreadsheat i made. 
After a quick review of the Rayleigh Standard...i found the problem i 
hope...(this is only the third mirror i've ever worked on, and i've only 
finished one.  Its not like i use this math everyday.)...I was multiplying 
the wrong number by .25 i think.  I have since made some corrections...the 
numbers seem a lot smaller, and there for less room for error.....but it 
would be handy if someone could check my math.  I've posted the file at 
http://mysite.verizon.net/cmb15s7x/temp.htm
if anyone has a hankering give it a look.

Thanks to yall who chimed in on the flight of fancy for the cell...I've 
looked at plop, but not entirely sure what to make of the output (probably 
just a vocabulary problem).  I'll play with it some more...it seems like a 
great tool, but suppose i didn't have a computer.  Anyone know of any 
resources that might help me to understand the basics of the 
calculations???...so i can do them long hand for giggles....yes i'll 
probably screw them up like i did my figuring numbers, but i learn better by 
making mistakes.

As always your humble student,
-norm-
Georgia, USA (land of bad math)