Retrieve a variable from a function

Hi,

I have tried the following:

syms p(n,m,b,d,t)
p(n,m,b,d,t)=((n-m)*((1/b)-(1/d)+ ((n-m)*t)/(n*b*d)))

I know the values of everything in this equation (including the total value of the p function) except n,. How do i get matlab to calculate what n is?

Thank you dearly in advance, Karen

Answer 1

[Jeff Miller]

syms p n m b d t

eqn = p == ((n-m)*((1/b)-(1/d)+ ((n-m)*t)/(n*b*d)));

solve_for_n = solve(eqn,n)

% Specify your known values here
m = 3;
b = 2;
d = 1;
t = 2;
p = 12;

the_n_is = vpa(subs(solve_for_n))

[Karen Lahav-Yacouel]

That s great. Thank you so much for your help! Def learned from your answer. Thank you!!!