Intergation problem

2011 10 8
1 个回答
12 次查看（30 天）

0 个投票

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

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回答（1 个）

Andrei Bobrov
Andrei Bobrov 2011-10-8

0 个投票

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))

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Shashishekar
Shashishekar 2011-10-8
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
Andrei Bobrov 2011-10-8
funcos = @(x)arrayfun(@(x)quad(@(x)sin(x+pi),pi/2,x),x);

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