1 /*- 2 * Copyright (c) 2014-2018 Carsten Sonne Larsen <cs@innolan.net> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * Project homepage: 26 * https://amath.innolan.net 27 * 28 */ 29 30 #ifndef AMATH_FUNCTION_CHORD_H 31 #define AMATH_FUNCTION_CHORD_H 32 33 #include "node.h" 34 35 /** 36 * @brief A chord function in a syntax tree. 37 * @details 38 * More info on the chord function is available at Wikipedia: 39 * https://en.wikipedia.org/wiki/Chord_(geometry) 40 * 41 */ 42 class ChordNode : public FunctionNode 43 { 44 public: 45 explicit ChordNode(ExpressionNode* expression, char* text, char* sys); 46 static FunctionNode* Create(ExpressionNode* expression, char* text, char* sys); 47 Number* Evaluate(); 48 }; 49 50 #endif 51