How do you calculate an exponential formula ?

[James thunderbolt]

I have been trying to calculate an exponential formula by have no idea how this works

I know the exponential formula is something along the lines of y = exp(linest(ln)) * e ^ linest(ln) * x

But I can't seem to get this to work (the yellow highlighted cells) - would appreciate if someone could advise where I'm going wrong ?

 

[Chihiro]

It should be... Copy down.
=$R$3*EXP($P$3*A3)

e is constant (approx 2.71828182845904, base of the natural log) = EXP(1)

EXP(Number) returns e raised to the power of number.
Meaning EXP(1)^($P$3*A3)=EXP($P$3*A3)

And EXP should be resolved before multiplication.

 

[James thunderbolt]

Thanks so much, works perfectly