The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: 2 parameter quadl
Replies: 1   Last Post: Jan 28, 2013 11:17 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View  
Steven Lord

Posts: 18,038
Registered: 12/7/04
Re: 2 parameter quadl
Posted: Jan 28, 2013 11:17 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"maia " <> wrote in message
> can i use quadl for blow function
> f=@(x,y) (a*x+b*y);
> if i want integrate it due to only x how should i write it?
> like this
> quad(f, x ,0,pi)

For a fixed value of y, you mean?

y = 2;
quad(@(x) f(x, y), 0, pi);

Symbolically, leaving y unevaluated so you receive a function of y? You will
need to define x and y as a symbolic value then use the _symbolic_
integration routine INT.

syms x y
newf = f(x, y)
int(newf, x, 0, pi)

This assumes that your function is only using operations that are defined
for symbolic variables.

Steve Lord
To contact Technical Support use the Contact Us link on

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.