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1 @c Copyright (C) 1996, 1997 John W. Eaton |
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2 @c This is part of the Octave manual. |
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3 @c For copying conditions, see the file gpl.texi. |
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4 |
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5 @node Polynomial Manipulations, Control Theory, Sets, Top |
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6 @chapter Polynomial Manipulations |
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7 |
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8 In Octave, a polynomial is represented by its coefficients (arranged |
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9 in descending order). For example, a vector |
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10 @iftex |
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11 @end iftex |
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12 @ifinfo |
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13 $c$ |
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14 @end ifinfo |
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15 of length |
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16 @iftex |
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17 @tex |
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18 $N+1$ |
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19 @end tex |
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20 @ifinfo |
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21 @var{N+1} |
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22 @end ifinfo |
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23 corresponds to the following polynomial of order |
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24 @iftex |
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25 @tex |
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26 $N$ |
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27 $$ |
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28 p (x) = c_1 x^N + ... + c_N x + c_{N+1}. |
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29 $$ |
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30 @end tex |
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31 @end iftex |
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32 @ifinfo |
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33 @var{N} |
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34 |
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35 @example |
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36 p(x) = @var{c}(1) x^@var{N} + ... + @var{c}(@var{N}) x + @var{c}(@var{N}+1). |
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37 @end example |
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38 @end ifinfo |
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39 |
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40 @DOCSTRING(compan) |
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41 |
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42 @DOCSTRING(conv) |
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43 |
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44 @DOCSTRING(deconv) |
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45 |
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46 @DOCSTRING(poly) |
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47 |
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48 @DOCSTRING(polyderiv) |
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49 |
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50 @DOCSTRING(polyfit) |
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51 |
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52 @DOCSTRING(polyinteg) |
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53 |
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54 @DOCSTRING(polyreduce) |
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55 |
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56 @DOCSTRING(polyval) |
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57 |
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58 @DOCSTRING(polyvalm) |
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59 |
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60 @DOCSTRING(residue) |
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61 |
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62 @DOCSTRING(roots) |
