Recent content by JT14

I see... So I guess I need to re-think how I've done things. I have a bunch of bacteria growth rates at different temperatures and water levels, and want to whack a curve on it that describes the boundary between growth and no growth for x (temp) and y(water). I've been playing around with...

Hi, I've done a response surface analysis, resulting in an equation of the form: P= A + B*X + C*X^2 + D*Y + E*Y^2 + F*X*Y Where A,B,C,D,E, and F are known values. I want to rearrange the equation so I can get a polynomial describing when P=0, but I'm stuck. Any suggestions...