how to write this integration please

Dear All, I attached an image with a formula that I need to write in matlab but I do not know the right syntax, x ranges from zero to infinity, how can I write this integration please?

[madhan ravi]

Just try what you know and paste the code here to debug, seems to be an easy task.

[MAHMOUD ALZIOUD]

i tried this but it is no working!

x=(0:100); %this is an example
  fun=(0.00001*x.^4-0.0003*x.^3+0.0093*x.^2-0.0843*x+0.1721)*(0.154*exp.(0.089*((x-9.911).^2))); %the first part of the integration

    q = integral(fun,2,50) % a required zone

Answer 1

[madhan ravi]

syms x %requires symbolic toolbox

fun=(0.00001*x.^4-0.0003*x.^3+0.0093*x.^2-0.0843*x+0.1721)*(0.154*exp(0.089*((x-9.911).^2)));

int(fun,x,2,50) %erfi constant arises because of exponential function

double(int(fun,x,2,50))

[MAHMOUD ALZIOUD]

it worked thank you, but the output is like a very ling line, how can i get the single value of this integration?

[madhan ravi]

Check edited code

[MAHMOUD ALZIOUD]

THANK YOU VERY MUCH; AMAZING