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comparison scripts/polynomial/polyval.m @ 2311:2b5788792cad

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[project @ 1996-07-11 20:18:38 by jwe]
author jwe
date Thu, 11 Jul 1996 20:18:38 +0000
parents 5cffc4b8de57
children 204cc7db6f4a
comparison
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2310:e2a8f216373d 2311:2b5788792cad
15 ### You should have received a copy of the GNU General Public License 15 ### You should have received a copy of the GNU General Public License
16 ### along with Octave; see the file COPYING. If not, write to the Free 16 ### along with Octave; see the file COPYING. If not, write to the Free
17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA 17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
18 ### 02111-1307, USA. 18 ### 02111-1307, USA.
19 19
20 ## usage: polyval (c, x)
21 ##
22 ## Evaluate a polynomial.
23 ##
24 ## In octave, a polynomial is represented by it's coefficients (arranged
25 ## in descending order). For example a vector c of length n+1 corresponds
26 ## to the following nth order polynomial
27 ##
28 ## p(x) = c(1) x^n + ... + c(n) x + c(n+1).
29 ##
30 ## polyval(c,x) will evaluate the polynomial at the specified value of x.
31 ##
32 ## If x is a vector or matrix, the polynomial is evaluated at each of the
33 ## elements of x.
34 ##
35 ## SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter,
36 ## polyderiv, polyinteg
37
20 function y = polyval (c, x) 38 function y = polyval (c, x)
21
22 ## usage: polyval (c, x)
23 ##
24 ## Evaluate a polynomial.
25 ##
26 ## In octave, a polynomial is represented by it's coefficients (arranged
27 ## in descending order). For example a vector c of length n+1 corresponds
28 ## to the following nth order polynomial
29 ##
30 ## p(x) = c(1) x^n + ... + c(n) x + c(n+1).
31 ##
32 ## polyval(c,x) will evaluate the polynomial at the specified value of x.
33 ##
34 ## If x is a vector or matrix, the polynomial is evaluated at each of the
35 ## elements of x.
36 ##
37 ## SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter,
38 ## polyderiv, polyinteg
39 39
40 ## Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994. 40 ## Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994.
41 41
42 if (nargin != 2) 42 if (nargin != 2)
43 usage ("polyval (c, x)"); 43 usage ("polyval (c, x)");