Intergation problem

I am trying to solve the intergal of e^(-1/x)and plot it.

The entire function is as shown below,

http://imageshack.us/photo/my-images/838/equationa.png/

Thanks in Anticipation

Shashi

Answer 1

[Andrei Bobrov]

C = 1;
a = 0;
b = 1;
quad(@(x)exp(-C./x),a,b)

about plot

fun = @(x)arrayfun(@(x)quad(@(x)exp(-C./x),0,x),x);
plot(0:.1:20,fun(0:.1:20))

[Shashishekar]

Hi,

@andrei, thank you. But I have a problem. when i check the code for cos(x), it works fine but it seems to be not giving convincing plot when i use sin(x) function

Below is the modified code,

C = 1;

a = 0;

b = pi;

quad(@(x) sin(x),a,b)

fun = @(x)arrayfun(@(x)quad(@(x)sin(x),0,x),x);

plot(0:.1:20,fun(0:.1:20))

<http://imageshack.us/photo/my-images/835/sinxx.png/>

[Andrei Bobrov]

funcos = @(x)arrayfun(@(x)quad(@(x)sin(x+pi),pi/2,x),x);