3 Replies Latest reply on Dec 16, 2015 2:49 PM by peterba1

    Calculation problem

    peterba1

      I am trying to bring a calculation that works out the risk of Grass fires.

       

      The original equation is as follows:

       

      =2*EXP(-23.6+5.01*LN(B45+0.001)+0.0281*B42-0.266*SQRT(B43)+0.633*SQRT(B44))

      where B45 is Curing (how dry the grass is)

      B44 is Wind Speed

      B43 is Relative Humitity of the air

      and B42 is Temperature.

       

      The calculation I got was:

       

      2*Exp(-23.6+(5.01*Ln(Curing)+.001)+(.0281*Temperature)-.266*Sqrt(Relative Humidity+.633*Sqrt(Wind Speed)))

       

      The results are all wrong.  What is my mistake? 

       

      Captain Peter Baxter