trending formula syntex [solved]

im using a sharp range finder, a long range one (150-550cm, gp2y0a710k0f)
i used excel to generate a strong fitting formula and would like to implement it in arduino

> i post as image as im not clear how to write it.

888×404 15.8 KB

any help welcomed.

as im not interested in exact distance, just linearity.
f = x^ - 1.192
is good enough ?

is that what u look for:
http://arduino.cc/en/Reference/Pow
?

e. g.:

f=pow(x,-1.192);

thanks
using POW was covered in previous question link
im looking to understand rest of formula
i did implment the pow as you showed. looks linear enough

hum
does this help:

?

i dont fully understand ur problem...
do u want to know, how excel makes that formula?

i basically want to write the full formula
but how do i write the first part of formula in arduino syntex > "6E+07"

btw.
sorry for delay i dont get notifications on this post.

oh - ok... it's easy...

it should be like this:

float y = 6e7*pow(x,-1.192)

6e7 = 6.00E+7 = 6.00pow(10,7) = 6.01010001000

thanks, done and solved

yahoo!
wag tail

have fun