Posts by FIREFSS

FIREFSS · Help Me !

That's what I wanted to find. The automated solution is perfect.

Only instead of using Mathematica (don't have it here at home), I used WolframAlpha online.

But it worked.
For other similar cases as well.

Thank you!

FIREFSS · Help Me !

Nice, this equation does the job as I wanted.

If you could share the method you use I would really appreciate.

thanks

FIREFSS · Help Me !

Ok, thank you very much!

I'll check if I find a way with Mathematica.

If you come with a method I'd be very pleased to see it, and try to apply it to other cases.

FIREFSS · Help Me !

Not exactly. What I mean is:

R(1) = TA-S
R(2) = (TA-S)*T-S
R(3) = ((TA-S)*T-S)*T-S

Sorry if I expressed it wrong.

FIREFSS · Help Me !

Sorry about the misnaming.

The equal sign wold be the "result" of the polynomial. (Let's call it "R").

Then it wold be like this:

R(n)=((((A*T)-S)*T-S)*T-S).... for n times

and what I wanted to find is this form:

$equ$

Because this form is much easier to solve for high values of n.

Thanks

FIREFSS · Help Me !

Hello,

I'd like to know how do I transform a serie that repeats n times into an equation.

For example:

Serie: ((((A*T)-S)*T-S)*T-S).... for n times.

For this example i know the equation is:

T^n*A-S*(T^n-1)/(T-1)

$T^n*A-S*(T^n-1)/(T-1)$

What method can I use to do this transformation?
Is there a software that can do this?

So far I'm using Excel and using a formula for n lines to get the result.

Thanks!

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