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1 (*
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2 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
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3 * Copyright (c) 2003, 2007-11 Matteo Frigo
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4 * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 *
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20 *)
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21
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22 type expr
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23 val make : (Expr.expr * Expr.expr) -> expr
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24 val two : expr
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25 val one : expr
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26 val i : expr
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27 val zero : expr
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28 val half : expr
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29 val inverse_int : int -> expr
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30 val inverse_int_sqrt : int -> expr
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31 val int_sqrt : int -> expr
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32 val times : expr -> expr -> expr
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33 val ctimes : expr -> expr -> expr
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34 val ctimesj : expr -> expr -> expr
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35 val uminus : expr -> expr
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36 val exp : int -> int -> expr
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37 val sec : int -> int -> expr
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38 val csc : int -> int -> expr
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39 val tan : int -> int -> expr
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40 val cot : int -> int -> expr
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41 val plus : expr list -> expr
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42 val real : expr -> expr
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43 val imag : expr -> expr
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44 val conj : expr -> expr
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45 val nan : Expr.transcendent -> expr
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46 val sigma : int -> int -> (int -> expr) -> expr
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47
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48 val (@*) : expr -> expr -> expr
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49 val (@+) : expr -> expr -> expr
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50 val (@-) : expr -> expr -> expr
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51
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52 (* a signal is a map from integers to expressions *)
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53 type signal = int -> expr
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54 val infinite : int -> signal -> signal
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55
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56 val store_real : Variable.variable -> expr -> Expr.expr
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57 val store_imag : Variable.variable -> expr -> Expr.expr
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58 val store :
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59 Variable.variable * Variable.variable -> expr -> Expr.expr * Expr.expr
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60
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61 val assign_real : Variable.variable -> expr -> Expr.assignment
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62 val assign_imag : Variable.variable -> expr -> Expr.assignment
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63 val assign :
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64 Variable.variable * Variable.variable ->
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65 expr -> Expr.assignment * Expr.assignment
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66
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67 val hermitian : int -> (int -> expr) -> int -> expr
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68 val antihermitian : int -> (int -> expr) -> int -> expr
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