# Output a solution for a function at a specific value input

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Shane Palmer on 3 Jun 2020
Commented: Shane Palmer on 3 Jun 2020
Hello,
I am trying to remember how to code a function (i.e. y = mx+b), to output a solution (y) by inputting a single input (x) without having to manually insert the (x) into my equation?
My function is "magT"
I would like to calculate the value magT(100), where 100 is the omega input.
I am not getting it to work properly though.
magT = sqrt((5.903*10^24)^2+(1.181*10^20*omega)^2)/sqrt((1.181*10^25-(2.361*10^16*omega^2))^2+(9.445*10^20*omega)^2);

Stephan on 3 Jun 2020
magT = @(omega)sqrt((5.903*10^24)^2+(1.181*10^20*omega)^2)/sqrt((1.181*10^25-(2.361*10^16*omega^2))^2+(9.445*10^20*omega)^2);
Y5 = magT(5)
Y10 = magT(10)

Shane Palmer on 3 Jun 2020
Hello,
It throws this error to me when I try that method... Stephan on 3 Jun 2020
Get rid of
syms omega
and note that I defined a function handle:
magT = @(omega)sqrt((5.903*10^24)^2+(1.181*10^20*omega)^2)/sqrt((1.181*10^25-(2.361*10^16*omega^2))^2+(9.445*10^20*omega)^2);
Shane Palmer on 3 Jun 2020
That worked thank you, I've a long ways to go.