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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <cfloat> |
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32 #include <cmath> |
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33 |
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34 #include "CmplxDET.h" |
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35 #include "oct-cmplx.h" |
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36 |
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37 int |
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38 ComplexDET::value_will_overflow (void) const |
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39 { |
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40 return det[2].real () + 1 > log10 (DBL_MAX) ? 1 : 0; |
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41 } |
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42 |
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43 int |
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44 ComplexDET::value_will_underflow (void) const |
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45 { |
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46 return det[2].real () - 1 < log10 (DBL_MIN) ? 1 : 0; |
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47 } |
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48 |
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49 Complex |
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50 ComplexDET::coefficient (void) const |
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51 { |
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52 return det[0]; |
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53 } |
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54 |
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55 int |
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56 ComplexDET::exponent (void) const |
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57 { |
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58 return (int) (det[1].real ()); |
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59 } |
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60 |
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61 Complex |
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62 ComplexDET::value (void) const |
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63 { |
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64 return det[0] * pow (10.0, det[1].real ()); |
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65 } |
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66 |
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67 /* |
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68 ;;; Local Variables: *** |
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69 ;;; mode: C++ *** |
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70 ;;; End: *** |
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71 */ |
