inline function error help(tanh)
4 views (last 30 days)
Show older comments
hi,
can anyone help with writing an inline function using tanh, e.g:
fx = inline('((2.*pi^2)./t)-((g*2*pi)./x).*tanh((2*pi*h)./x)');
0 Comments
Answers (1)
David Wilson
on 20 Apr 2019
I can, but perhaps you should use anonymous functions. The inline approach is now discouraged.
Instead of what you wrote above, try:
fx2 = @(g,h,t,x) ((2.*pi^2)./t)-((g*2*pi)./x).*tanh((2*pi*h)./x)
g= 1;h=2;t=3;
x = linspace(0,5)';
plot(x, fx2(g,h,t,x))
However going by your chouce of variable names, I'm assuming that g,h, & t are constants, and that x is the variable. In that case try:
g= 1;h=2;t=3; % fold constants in the definition
fx3 = @(x) ((2.*pi^2)./t)-((g*2*pi)./x).*tanh((2*pi*h)./x)
x = linspace(0,5)';
plot(x, fx3(x))
Is this what you want? Of course f(x=0) returns -inf (for my values of h etc).
See Also
Categories
Find more on Function Creation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!