LibTest/math/exp_A01_t01.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion double exp(num x)
/// Converts [x] to a double and returns the natural exponent, E, to the power
/// [x].
/// @description Checks set of values.
/// @author msyabro
/// @reviewer pagolubev
/// @3rdparty sputnik-v1:S15.8.2.2_A5.js
/// @needsreview Returned value precision is not specified.


import "dart:math" as Math;
import "../../Utils/expect.dart";

main() {
  
  int vnum = 64;
  var x = new List(64);
  x[0] = -16.00000000000000000000;
  x[1] = -15.49206349206349200000;
  x[2] = -14.98412698412698400000;
  x[3] = -14.47619047619047600000;
  x[4] = -13.96825396825396800000;
  x[5] = -13.46031746031746000000;
  x[6] = -12.95238095238095300000;
  x[7] = -12.44444444444444500000;
  x[8] = -11.93650793650793700000;
  x[9] = -11.42857142857142900000;
  x[10] = -10.92063492063492100000;
  x[11] = -10.41269841269841300000;
  x[12] = -9.90476190476190510000;
  x[13] = -9.39682539682539720000;
  x[14] = -8.88888888888888930000;
  x[15] = -8.38095238095238140000;
  x[16] = -7.87301587301587350000;
  x[17] = -7.36507936507936560000;
  x[18] = -6.85714285714285770000;
  x[19] = -6.34920634920634970000;
  x[20] = -5.84126984126984180000;
  x[21] = -5.33333333333333390000;
  x[22] = -4.82539682539682600000;
  x[23] = -4.31746031746031810000;
  x[24] = -3.80952380952381020000;
  x[25] = -3.30158730158730230000;
  x[26] = -2.79365079365079440000;
  x[27] = -2.28571428571428650000;
  x[28] = -1.77777777777777860000;
  x[29] = -1.26984126984127070000;
  x[30] = -0.76190476190476275000;
  x[31] = -0.25396825396825484000;
  x[32] = 0.25396825396825307000;
  x[33] = 0.76190476190476275000;
  x[34] = 1.26984126984126890000;
  x[35] = 1.77777777777777860000;
  x[36] = 2.28571428571428470000;
  x[37] = 2.79365079365079440000;
  x[38] = 3.30158730158730050000;
  x[39] = 3.80952380952381020000;
  x[40] = 4.31746031746031630000;
  x[41] = 4.82539682539682600000;
  x[42] = 5.33333333333333210000;
  x[43] = 5.84126984126984180000;
  x[44] = 6.34920634920634800000;
  x[45] = 6.85714285714285770000;
  x[46] = 7.36507936507936380000;
  x[47] = 7.87301587301587350000;
  x[48] = 8.38095238095237960000;
  x[49] = 8.88888888888888930000;
  x[50] = 9.39682539682539540000;
  x[51] = 9.90476190476190510000;
  x[52] = 10.41269841269841100000;
  x[53] = 10.92063492063492100000;
  x[54] = 11.42857142857142700000;
  x[55] = 11.93650793650793700000;
  x[56] = 12.44444444444444300000;
  x[57] = 12.95238095238095300000;
  x[58] = 13.46031746031745900000;
  x[59] = 13.96825396825396800000;
  x[60] = 14.47619047619047400000;
  x[61] = 14.98412698412698400000;
  x[62] = 15.49206349206349000000;
  x[63] = 16.00000000000000000000;


  var y = new List(64);
  y[0] = 0.0000001125351747192591200;
  y[1] = 0.0000001870175279627160400;
  y[2] = 0.0000003107966540465112000;
  y[3] = 0.0000005165000372893601900;
  y[4] = 0.0000008583499373194266000;
  y[5] = 0.000001426456073000250500;
  y[6] = 0.000002370568039596737700;
  y[7] = 0.000003939548463303105900;
  y[8] = 0.000006546971795567619300;
  y[9] = 0.00001088014022196331600;
  y[10] = 0.00001808125266855845500;
  y[11] = 0.00003004848204109428100;
  y[12] = 0.00004993632297081056800;
  y[13] = 0.00008298709893014922600;
  y[14] = 0.0001379128093365619200;
  y[15] = 0.0002291915638009238700;
  y[16] = 0.0003808839307255494700;
  y[17] = 0.0006329751683659501200;
  y[18] = 0.001051915114939835700;
  y[19] = 0.001748133993779607700;
  y[20] = 0.002905151201656255000;
  y[21] = 0.004827949993831437100;
  y[22] = 0.008023369361859111100;
  y[23] = 0.01333370395283075800;
  y[24] = 0.02215872822045164600;
  y[25] = 0.03682466913056056000;
  y[26] = 0.06119738655956222900;
  y[27] = 0.1017013923042267600;
  y[28] = 0.1690133154060659600;
  y[29] = 0.2808762017642814100;
  y[30] = 0.4667764816516809500;
  y[31] = 0.7757164275739275600;
  y[32] = 1.289130878828392400;
  y[33] = 2.142353009006615400;
  y[34] = 3.560287392519015300;
  y[35] = 5.916693590664334800;
  y[36] = 9.832707078469738300;
  y[37] = 16.340567076777361000;
  y[38] = 27.155709029035226000;
  y[39] = 45.128943775619703000;
  y[40] = 74.997915323273489000;
  y[41] = 124.635917268588530000;
  y[42] = 207.127248889834330000;
  y[43] = 344.216163148372520000;
  y[44] = 572.038529974419700000;
  y[45] = 950.647049174870860000;
  y[46] = 1579.840805732611900000;
  y[47] = 2625.471749609100700000;
  y[48] = 4363.162340777078500000;
  y[49] = 7250.958085841060000000;
  y[50] = 12050.065767953940000000;
  y[51] = 20025.503291152076000000;
  y[52] = 33279.551314186152000000;
  y[53] = 55305.902656783459000000;
  y[54] = 91910.580157904318000000;
  y[55] = 152742.371775148380000000;
  y[56] = 253836.197045168550000000;
  y[57] = 421839.822058054970000000;
  y[58] = 701038.061338060300000000;
  y[59] = 1165026.006902193900000000;
  y[60] = 1936108.282291886200000000;
  y[61] = 3217537.856280616000000000;
  y[62] = 5347092.386973262800000000;
  y[63] = 8886110.520507872100000000;

  for (int i = 0; i < vnum; i++) {
    Expect.approxEquals(y[i], Math.exp(x[i]), (y[i]/1e7).abs());
  }
}