raise a number to the power of another number

WhatamINuts

Greetings
·· Another crazy question
· I need to implement this Formula on the BS2
··· X^y/x· Where ^ is "to the power of"
·X is a constant of my choice·and Y is a Variable between 1000 and 3000
······· Any ideas ?
· Thanks
··· Have Fun
········ Tim

Phil Pilgrim (PhiPi)

The largest native data type in PBASIC is WORD, which is 16 bits long and has a dynamic range of 0 to 65535. It would be completely unrealistic to raise any number greater than 1 to the 1000th power, given this limitation. You could keep your result as a logarithm:

····log₂2¹⁰⁰⁰ = 1000

but the resulting loss of precision may be more than your app could sustain.

-Phil

Redd Dawg

And here is where you can get some logs and other great math info.

http://www.emesystems.com/BS2math3.htm

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WhatamINuts

Thanks very much for the info.
· I will try the log function as the precision isnlt as important as the curve generated by the numbers.
· I can easily scale the output to what I need.
··· Thanks Again
···· Have Fun
········ Tim
·PS
· The real problem with my approach on the stamp is
·X^y/x· Where ^ is "to the power of"
·X is a constant of my choice·and Y is a Variable between 1000 and 3000
·······
·The Y/x becomes· a fraction say 1000/2500 so I end up with
·· 2500^(1000/2500)= 22

Post Edited (WhatamINuts) : 10/8/2009 8:14:02 PM GMT

WhatamINuts

Just wanted to say thanks for the help
·· Problem solved