118 lines
3.2 KiB
JavaScript
118 lines
3.2 KiB
JavaScript
/**
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* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
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* Copyright (C) 2023 Ad5001
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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.pragma library
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.import "polyfill.js" as Polyfill
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const CONSTANTS = {
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"π": Math.PI,
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"pi": Math.PI,
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"inf": Infinity,
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"infinity": Infinity,
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"∞": Infinity,
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"e": Math.E
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};
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const CONSTANTS_LIST = Object.keys(CONSTANTS);
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const FUNCTIONS = {
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// The functions commented are the one either not implemented
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// in the parser, or not to be used for autocompletion.
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// Unary operators
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//'+': Number,
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//'-': (x) => -x,
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//'!'
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// Other operations
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'length': (s) => Array.isArray(s) ? s.length : String(s).length,
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// Boolean functions
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'not': (x) => !x,
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// Math functions
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'abs': Math.abs,
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'acos': Math.acos,
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'acosh': Math.acosh,
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'asin': Math.asin,
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'asinh': Math.asinh,
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'atan': Math.atan,
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'atan2': Math.atan2,
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'atanh': Math.atanh,
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'cbrt': Math.cbrt,
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'ceil': Math.ceil,
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//'clz32': Math.clz32,
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'cos': Math.cos,
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'cosh': Math.cosh,
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'exp': Math.exp,
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'expm1': Math.expm1,
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'floor': Math.floor,
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//'fround': Math.fround,
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'hypot': Math.hypot,
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//'imul': Math.imul,
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'lg': Math.log10,
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'ln': Math.log,
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'log': Math.log,
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'log10': Math.log10,
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'log1p': Math.log1p,
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'log2': Math.log2,
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'max': Math.max,
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'min': Math.min,
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'pow': Math.log2,
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'random': Math.random,
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'round': Math.round,
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'sign': Math.sign,
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'sin': Math.sin,
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'sinh': Math.sinh,
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'sqrt': Math.sqrt,
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'tan': Math.tan,
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'tanh': Math.tanh,
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'trunc': Math.trunc,
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// Functions in expr-eval, ported here.
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'fac': Polyfill.factorial,
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'gamma': Polyfill.gamma,
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'Γ': Polyfill.gamma,
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'roundTo': (x, exp) => Number(x).toFixed(exp),
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'map': Polyfill.arrayMap,
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'fold': Polyfill.arrayFold,
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'filter': Polyfill.arrayFilter,
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'indexOf': Polyfill.indexOf,
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'join': Polyfill.arrayJoin,
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// Integral & derivative (only here for autocomplete).
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'integral': () => 0, // TODO: Implement
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'derivative': () => 0,
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}
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const FUNCTIONS_LIST = Object.keys(FUNCTIONS);
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// TODO: Complete
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const DERIVATIVES = {
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"abs": "abs(<1>)/<1>",
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"acos": "-derivate(<1>)/sqrt(1-(<1>)^2)",
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"acosh": "derivate(<1>)/sqrt((<1>)^2-1)",
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"asin": "derivate(<1>)/sqrt(1-(<1>)^2)",
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"asinh": "derivate(<1>)/sqrt((<1>)^2+1)",
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"atan": "derivate(<1>)/(1+(<1>)^2)",
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"atan2": "",
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}
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const INTEGRALS = {
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"abs": "integrate(<1>)*sign(<1>)",
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"acos": "",
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"acosh": "",
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"asin": "",
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"asinh": "",
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"atan": "",
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"atan2": "",
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}
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