Strain your brain. Writing formulas.

[Peter Nachtwey]

In the thead about the volume of a cone I showed a formula

Pos(t) = a + b*t + c*pow(t,2) + d*pow(t,3)+e*pow(t,4) + f*pow(t,5)

that I said was not optimal. I am surprised that no one asked how to write this formula the correct way.

So what is the correct way? What difference does it make? The correct technique can be applied in CPT blocks, statement list or even in ladder.

 

[kamenges]

I think it is:

 

Pos(t) = a + t(b + t(c + t(d + t(e + ft))))

 

Five multiplies and five adds.

Keith

 

[Peter Nachtwey]

You are no fun. You are right.

I can see I need to think of something much more difficult to strain Keith's brain. Oh well. Now let me see......

 

[kamenges]

I cheated. You already posted that somewhere else. I don't think it was on this forum, though. I must admit it is a much better way of approaching the problem than using the exponent.


Keith