[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Evaluating quadratic functions
From: |
hanrahat |
Subject: |
Evaluating quadratic functions |
Date: |
Mon, 24 Jan 2005 01:50:38 +0000 |
I'm having trouble understanding how to evaluate and plot quadratic functions.
Here's a sequence that explains what I'm trying to accomplish. In particular,
I don't understand the error message "error: for A^b, A must be square" It
doesn't
seem that A being square has anything to do with the function.
Can anyone help me understand how to do this?
Thanks,
-- Tom
GNU Octave, version 2.1.50 (i686-pc-linux-gnu).
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 John W. Eaton.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTIBILITY or
FITNESS FOR A PARTICULAR PURPOSE. For details, type `warranty'.
Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html
Report bugs to <address@hidden>.
octave:1> x = 1:1:2;
octave:2> sqrt(x)
ans =
1.0000 1.4142
octave:3> exp(x)
ans =
2.7183 7.3891
octave:4> function retval = linear(x)
> retval = x + 1;
> endfunction
octave:5> linear(x)
ans =
2 3
octave:6> function retval = quad(x)
> retval = x^2;
> endfunction
octave:7> quad(x)
error: for A^b, A must be square
error: evaluating binary operator `^' near line 2, column 11
error: evaluating assignment expression near line 2, column 8
error: called from `quad'
octave:7>
-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.
Octave's home on the web: http://www.octave.org
How to fund new projects: http://www.octave.org/funding.html
Subscription information: http://www.octave.org/archive.html
-------------------------------------------------------------
- Evaluating quadratic functions,
hanrahat <=