Wolfram|Alpha output changes in new browser window?

[garrygeorge]

I have the following as an input:

(2*c*N*(m+p))/((m^2)*p) substitute c = sqrt(c^2 - ((4/3000)*k*N*(1+m/p))^2) -...

If I right click on the result and open in a new link I get this:

(2 N sqrt(c^2 - (k^2 N^2 (1 + m/p)^2)/562500) (m + p))/(m^2 p) - Wolfram|Alpha

Which is wrong.

If I explicitly add operators, ie k^2 * N^2 * (1 + m/p)^2, I get the correct answer.

Does anyone know what is going on here?

[garrygeorge]

Ok I’ve worked it out.

Wolfram|Alpha clearly doesn’t like capital N as a variable, n is ok.