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agriconnect / libpython3.8-testsuite   deb

Repository URL to install this package:

Version: 3.8.5-1+stretch1 

/ usr / lib / python3.8 / test / decimaltestdata / exp.decTest

------------------------------------------------------------------------
-- exp.decTest -- decimal natural exponentiation                      --
-- Copyright (c) IBM Corporation, 2005, 2008.  All rights reserved.   --
------------------------------------------------------------------------
-- Please see the document "General Decimal Arithmetic Testcases"     --
-- at http://www2.hursley.ibm.com/decimal for the description of      --
-- these testcases.                                                   --
--                                                                    --
-- These testcases are experimental ('beta' versions), and they       --
-- may contain errors.  They are offered on an as-is basis.  In       --
-- particular, achieving the same results as the tests here is not    --
-- a guarantee that an implementation complies with any Standard      --
-- or specification.  The tests are not exhaustive.                   --
--                                                                    --
-- Please send comments, suggestions, and corrections to the author:  --
--   Mike Cowlishaw, IBM Fellow                                       --
--   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
--   mfc@uk.ibm.com                                                   --
------------------------------------------------------------------------
version: 2.59

-- Tests of the exponential function.  Currently all testcases here
-- show results which are correctly rounded (within <= 0.5 ulp).

extended:    1
precision:   9
rounding:    half_even
maxExponent: 384
minexponent: -383

-- basics (examples in specificiation, etc.)
expx001 exp  -Infinity     -> 0
expx002 exp  -10           -> 0.0000453999298 Inexact Rounded
expx003 exp  -1            -> 0.367879441 Inexact Rounded
expx004 exp   0            -> 1
expx005 exp  -0            -> 1
expx006 exp   1            -> 2.71828183  Inexact Rounded
expx007 exp   0.693147181  -> 2.00000000  Inexact Rounded
expx008 exp   10           -> 22026.4658  Inexact Rounded
expx009 exp  +Infinity     -> Infinity

-- tiny edge cases
precision:   7
expx011 exp  0.1          ->  1.105171  Inexact Rounded
expx012 exp  0.01         ->  1.010050  Inexact Rounded
expx013 exp  0.001        ->  1.001001  Inexact Rounded
expx014 exp  0.0001       ->  1.000100  Inexact Rounded
expx015 exp  0.00001      ->  1.000010  Inexact Rounded
expx016 exp  0.000001     ->  1.000001  Inexact Rounded
expx017 exp  0.0000001    ->  1.000000  Inexact Rounded
expx018 exp  0.0000003    ->  1.000000  Inexact Rounded
expx019 exp  0.0000004    ->  1.000000  Inexact Rounded
expx020 exp  0.0000005    ->  1.000001  Inexact Rounded
expx021 exp  0.0000008    ->  1.000001  Inexact Rounded
expx022 exp  0.0000009    ->  1.000001  Inexact Rounded
expx023 exp  0.0000010    ->  1.000001  Inexact Rounded
expx024 exp  0.0000011    ->  1.000001  Inexact Rounded
expx025 exp  0.00000009   ->  1.000000  Inexact Rounded
expx026 exp  0.00000005   ->  1.000000  Inexact Rounded
expx027 exp  0.00000004   ->  1.000000  Inexact Rounded
expx028 exp  0.00000001   ->  1.000000  Inexact Rounded

-- and some more zeros
expx030 exp  0.00000000   ->  1
expx031 exp  0E+100       ->  1
expx032 exp  0E-100       ->  1
expx033 exp -0.00000000   ->  1
expx034 exp -0E+100       ->  1
expx035 exp -0E-100       ->  1

-- basic e=0, e=1, e=2, e=4, e>=8 cases
precision:   7
expx041 exp  1          ->  2.718282  Inexact Rounded
expx042 exp -1          ->  0.3678794 Inexact Rounded
expx043 exp  10         ->  22026.47  Inexact Rounded
expx044 exp -10         ->  0.00004539993 Inexact Rounded
expx045 exp  100        ->  2.688117E+43  Inexact Rounded
expx046 exp -100        ->  3.720076E-44  Inexact Rounded
expx047 exp  1000       ->  Infinity Overflow Inexact Rounded
expx048 exp -1000       ->  0E-389 Underflow Inexact Rounded Clamped Subnormal
expx049 exp  100000000  ->  Infinity Overflow Inexact Rounded
expx050 exp -100000000  ->  0E-389 Underflow Inexact Rounded Clamped Subnormal

-- miscellanea
-- similar to 'VF bug' test, at 17, but with last digit corrected for decimal
precision: 16
expx055 exp -5.42410311287441459172E+2 -> 2.717658486884572E-236 Inexact Rounded
--  result from NetRexx/Java prototype -> 2.7176584868845721117677929628617246054459644711108E-236
--   result from Rexx (series) version -> 2.717658486884572111767792962861724605446E-236
precision: 17
expx056 exp -5.42410311287441459172E+2 -> 2.7176584868845721E-236 Inexact Rounded
precision: 18
expx057 exp -5.42410311287441459172E+2 -> 2.71765848688457211E-236 Inexact Rounded
precision: 19
expx058 exp -5.42410311287441459172E+2 -> 2.717658486884572112E-236 Inexact Rounded
precision: 20
expx059 exp -5.42410311287441459172E+2 -> 2.7176584868845721118E-236 Inexact Rounded

-- rounding in areas of ..500.., ..499.., ..100.., ..999.. sequences
precision:   50
expx101 exp -9E-8 -> 0.99999991000000404999987850000273374995079250073811 Inexact Rounded
precision:   31
expx102 exp -9E-8 -> 0.9999999100000040499998785000027 Inexact Rounded
precision:   30
expx103 exp -9E-8 -> 0.999999910000004049999878500003  Inexact Rounded
precision:   29
expx104 exp -9E-8 -> 0.99999991000000404999987850000   Inexact Rounded
precision:   28
expx105 exp -9E-8 -> 0.9999999100000040499998785000    Inexact Rounded
precision:   27
expx106 exp -9E-8 -> 0.999999910000004049999878500     Inexact Rounded
precision:   26
expx107 exp -9E-8 -> 0.99999991000000404999987850      Inexact Rounded
precision:   25
expx108 exp -9E-8 -> 0.9999999100000040499998785       Inexact Rounded
precision:   24
expx109 exp -9E-8 -> 0.999999910000004049999879        Inexact Rounded
precision:   23
expx110 exp -9E-8 -> 0.99999991000000404999988         Inexact Rounded
precision:   22
expx111 exp -9E-8 -> 0.9999999100000040499999          Inexact Rounded
precision:   21
expx112 exp -9E-8 -> 0.999999910000004050000           Inexact Rounded
precision:   20
expx113 exp -9E-8 -> 0.99999991000000405000            Inexact Rounded
precision:   19
expx114 exp -9E-8 -> 0.9999999100000040500             Inexact Rounded
precision:   18
expx115 exp -9E-8 -> 0.999999910000004050              Inexact Rounded
precision:   17
expx116 exp -9E-8 -> 0.99999991000000405               Inexact Rounded
precision:   16
expx117 exp -9E-8 -> 0.9999999100000040                Inexact Rounded
precision:   15
expx118 exp -9E-8 -> 0.999999910000004                 Inexact Rounded
precision:   14
expx119 exp -9E-8 -> 0.99999991000000                  Inexact Rounded
precision:   13
expx120 exp -9E-8 -> 0.9999999100000                   Inexact Rounded
precision:   12
expx121 exp -9E-8 -> 0.999999910000                    Inexact Rounded
precision:   11
expx122 exp -9E-8 -> 0.99999991000                     Inexact Rounded
precision:   10
expx123 exp -9E-8 -> 0.9999999100                      Inexact Rounded
precision:    9
expx124 exp -9E-8 -> 0.999999910                       Inexact Rounded
precision:    8
expx125 exp -9E-8 -> 0.99999991                        Inexact Rounded
precision:    7
expx126 exp -9E-8 -> 0.9999999                         Inexact Rounded
precision:    6
expx127 exp -9E-8 -> 1.00000                           Inexact Rounded
precision:    5
expx128 exp -9E-8 -> 1.0000                            Inexact Rounded
precision:    4
expx129 exp -9E-8 -> 1.000                             Inexact Rounded
precision:    3
expx130 exp -9E-8 -> 1.00                              Inexact Rounded
precision:    2
expx131 exp -9E-8 -> 1.0                               Inexact Rounded
precision:    1
expx132 exp -9E-8 -> 1                                 Inexact Rounded


-- sanity checks, with iteration counts [normalized so 0<=|x|<1]
precision:   50

expx210 exp 0 -> 1
-- iterations: 2
expx211 exp -1E-40 -> 0.99999999999999999999999999999999999999990000000000 Inexact Rounded
-- iterations: 8
expx212 exp -9E-7 -> 0.99999910000040499987850002733749507925073811240510 Inexact Rounded
-- iterations: 6
expx213 exp -9E-8 -> 0.99999991000000404999987850000273374995079250073811 Inexact Rounded
-- iterations: 15
expx214 exp -0.003 -> 0.99700449550337297601206623409756091074177480489845 Inexact Rounded
-- iterations: 14
expx215 exp -0.001 -> 0.99900049983337499166805535716765597470235590236008 Inexact Rounded
-- iterations: 26
expx216 exp -0.1 -> 0.90483741803595957316424905944643662119470536098040 Inexact Rounded
-- iterations: 39
expx217 exp -0.7 -> 0.49658530379140951470480009339752896170766716571182 Inexact Rounded
-- iterations: 41
expx218 exp -0.9 -> 0.40656965974059911188345423964562598783370337617038 Inexact Rounded
-- iterations: 43
expx219 exp -0.99 -> 0.37157669102204569053152411990820138691802885490501 Inexact Rounded
-- iterations: 26
expx220 exp -1 -> 0.36787944117144232159552377016146086744581113103177 Inexact Rounded
-- iterations: 26
expx221 exp -1.01 -> 0.36421897957152331975704629563734548959589139192482 Inexact Rounded
-- iterations: 27
expx222 exp -1.1 -> 0.33287108369807955328884690643131552161247952156921 Inexact Rounded
-- iterations: 28
expx223 exp -1.5 -> 0.22313016014842982893328047076401252134217162936108 Inexact Rounded
-- iterations: 30
expx224 exp -2 -> 0.13533528323661269189399949497248440340763154590958 Inexact Rounded
-- iterations: 36
expx225 exp -5 -> 0.0067379469990854670966360484231484242488495850273551 Inexact Rounded
-- iterations: 26
expx226 exp -10 -> 0.000045399929762484851535591515560550610237918088866565 Inexact Rounded
-- iterations: 28
expx227 exp -14 -> 8.3152871910356788406398514256526229460765836498457E-7 Inexact Rounded
-- iterations: 29
expx228 exp -15 -> 3.0590232050182578837147949770228963937082078081856E-7 Inexact Rounded
-- iterations: 30
expx233 exp 0 -> 1
-- iterations: 2
expx234 exp 1E-40 -> 1.0000000000000000000000000000000000000001000000000 Inexact Rounded
-- iterations: 7
expx235 exp 9E-7 -> 1.0000009000004050001215000273375049207507381125949 Inexact Rounded
-- iterations: 6
expx236 exp 9E-8 -> 1.0000000900000040500001215000027337500492075007381 Inexact Rounded
-- iterations: 15
expx237 exp 0.003 -> 1.0030045045033770260129340913489002053318727195619 Inexact Rounded
-- iterations: 13
expx238 exp 0.001 -> 1.0010005001667083416680557539930583115630762005807 Inexact Rounded
-- iterations: 25
expx239 exp 0.1 -> 1.1051709180756476248117078264902466682245471947375 Inexact Rounded
-- iterations: 38
expx240 exp 0.7 -> 2.0137527074704765216245493885830652700175423941459 Inexact Rounded
-- iterations: 41
expx241 exp 0.9 -> 2.4596031111569496638001265636024706954217723064401 Inexact Rounded
-- iterations: 42
expx242 exp 0.99 -> 2.6912344723492622890998794040710139721802931841030 Inexact Rounded
-- iterations: 26
expx243 exp 1 -> 2.7182818284590452353602874713526624977572470937000 Inexact Rounded
-- iterations: 26
expx244 exp 1.01 -> 2.7456010150169164939897763166603876240737508195960 Inexact Rounded
-- iterations: 26
expx245 exp 1.1 -> 3.0041660239464331120584079535886723932826810260163 Inexact Rounded
-- iterations: 28
expx246 exp 1.5 -> 4.4816890703380648226020554601192758190057498683697 Inexact Rounded
-- iterations: 29
expx247 exp 2 -> 7.3890560989306502272304274605750078131803155705518 Inexact Rounded
-- iterations: 36
expx248 exp 5 -> 148.41315910257660342111558004055227962348766759388 Inexact Rounded
-- iterations: 26
expx249 exp 10 -> 22026.465794806716516957900645284244366353512618557 Inexact Rounded
-- iterations: 28
expx250 exp 14 -> 1202604.2841647767777492367707678594494124865433761 Inexact Rounded
-- iterations: 28
expx251 exp 15 -> 3269017.3724721106393018550460917213155057385438200 Inexact Rounded
-- iterations: 29

-- a biggie [result verified 3 ways]
precision: 250
expx260 exp 1 -> 2.718281828459045235360287471352662497757247093699959574966967627724076630353547594571382178525166427427466391932003059921817413596629043572900334295260595630738132328627943490763233829880753195251019011573834187930702154089149934884167509244761460668 Inexact Rounded

-- extreme range boundaries
precision:   16
maxExponent: 999999
minExponent: -999999
-- Ntiny boundary
expx290 exp  -2302618.022332529 -> 0E-1000014 Underflow Subnormal Inexact Rounded Clamped
expx291 exp  -2302618.022332528 -> 1E-1000014 Underflow Subnormal Inexact Rounded
-- Nmax/10 and Nmax boundary
expx292 exp  2302582.790408952 -> 9.999999993100277E+999998  Inexact Rounded
expx293 exp  2302582.790408953 -> 1.000000000310028E+999999  Inexact Rounded
expx294 exp  2302585.092993946 -> 9.999999003159870E+999999 Inexact Rounded
expx295 exp  2302585.092994036 -> 9.999999903159821E+999999 Inexact Rounded
expx296 exp  2302585.092994045 -> 9.999999993159820E+999999 Inexact Rounded
expx297 exp  2302585.092994046 -> Infinity Overflow         Inexact Rounded

-- 0<-x<<1 effects
precision:    30
expx320 exp -4.9999999999999E-8 -> 0.999999950000001250000979166617 Inexact Rounded
expx321 exp -5.0000000000000E-8 -> 0.999999950000001249999979166667 Inexact Rounded
expx322 exp -5.0000000000001E-8 -> 0.999999950000001249998979166717 Inexact Rounded
precision:    20
expx323 exp -4.9999999999999E-8 -> 0.99999995000000125000 Inexact Rounded
expx324 exp -5.0000000000000E-8 -> 0.99999995000000125000 Inexact Rounded
expx325 exp -5.0000000000001E-8 -> 0.99999995000000125000 Inexact Rounded
precision:    14
expx326 exp -4.9999999999999E-8 -> 0.99999995000000 Inexact Rounded
expx327 exp -5.0000000000000E-8 -> 0.99999995000000 Inexact Rounded
expx328 exp -5.0000000000001E-8 -> 0.99999995000000 Inexact Rounded
-- overprecise and 0<-x<<1
precision:    8
expx330 exp -4.9999999999999E-8 -> 0.99999995       Inexact Rounded
expx331 exp -5.0000000000000E-8 -> 0.99999995       Inexact Rounded
expx332 exp -5.0000000000001E-8 -> 0.99999995       Inexact Rounded
precision:    7
expx333 exp -4.9999999999999E-8 -> 1.000000         Inexact Rounded
expx334 exp -5.0000000000000E-8 -> 1.000000         Inexact Rounded
expx335 exp -5.0000000000001E-8 -> 1.000000         Inexact Rounded
precision:    3
expx336 exp -4.9999999999999E-8 -> 1.00             Inexact Rounded
expx337 exp -5.0000000000000E-8 -> 1.00             Inexact Rounded
expx338 exp -5.0000000000001E-8 -> 1.00             Inexact Rounded

-- 0<x<<1 effects
precision:    30
expx340 exp  4.9999999999999E-8 -> 1.00000005000000124999902083328  Inexact Rounded
expx341 exp  5.0000000000000E-8 -> 1.00000005000000125000002083333  Inexact Rounded
expx342 exp  5.0000000000001E-8 -> 1.00000005000000125000102083338  Inexact Rounded
precision:    20
expx343 exp  4.9999999999999E-8 -> 1.0000000500000012500  Inexact Rounded
expx344 exp  5.0000000000000E-8 -> 1.0000000500000012500  Inexact Rounded
expx345 exp  5.0000000000001E-8 -> 1.0000000500000012500  Inexact Rounded
precision:    14
expx346 exp  4.9999999999999E-8 -> 1.0000000500000  Inexact Rounded
expx347 exp  5.0000000000000E-8 -> 1.0000000500000  Inexact Rounded
expx348 exp  5.0000000000001E-8 -> 1.0000000500000  Inexact Rounded
-- overprecise and 0<x<<1
precision:    8
expx350 exp  4.9999999999999E-8 -> 1.0000001        Inexact Rounded
expx351 exp  5.0000000000000E-8 -> 1.0000001        Inexact Rounded
expx352 exp  5.0000000000001E-8 -> 1.0000001        Inexact Rounded
precision:    7
expx353 exp  4.9999999999999E-8 -> 1.000000         Inexact Rounded
expx354 exp  5.0000000000000E-8 -> 1.000000         Inexact Rounded
expx355 exp  5.0000000000001E-8 -> 1.000000         Inexact Rounded
precision:    3
expx356 exp  4.9999999999999E-8 -> 1.00             Inexact Rounded
expx357 exp  5.0000000000000E-8 -> 1.00             Inexact Rounded
expx358 exp  5.0000000000001E-8 -> 1.00             Inexact Rounded

-- cases near 1              --  1 2345678901234567890
precision:    20
expx401 exp 0.99999999999996  -> 2.7182818284589365041  Inexact Rounded
expx402 exp 0.99999999999997  -> 2.7182818284589636869  Inexact Rounded
expx403 exp 0.99999999999998  -> 2.7182818284589908697  Inexact Rounded
expx404 exp 0.99999999999999  -> 2.7182818284590180525  Inexact Rounded
expx405 exp 1.0000000000000   -> 2.7182818284590452354  Inexact Rounded
expx406 exp 1.0000000000001   -> 2.7182818284593170635  Inexact Rounded
expx407 exp 1.0000000000002   -> 2.7182818284595888917  Inexact Rounded
precision:    14
expx411 exp 0.99999999999996  -> 2.7182818284589  Inexact Rounded
expx412 exp 0.99999999999997  -> 2.7182818284590  Inexact Rounded
expx413 exp 0.99999999999998  -> 2.7182818284590  Inexact Rounded
expx414 exp 0.99999999999999  -> 2.7182818284590  Inexact Rounded
expx415 exp 1.0000000000000   -> 2.7182818284590  Inexact Rounded
expx416 exp 1.0000000000001   -> 2.7182818284593  Inexact Rounded
expx417 exp 1.0000000000002   -> 2.7182818284596  Inexact Rounded
-- overprecise...
precision:    7
expx421 exp 0.99999999999996  -> 2.718282         Inexact Rounded
expx422 exp 0.99999999999997  -> 2.718282         Inexact Rounded
expx423 exp 0.99999999999998  -> 2.718282         Inexact Rounded
expx424 exp 0.99999999999999  -> 2.718282         Inexact Rounded
expx425 exp 1.0000000000001   -> 2.718282         Inexact Rounded
expx426 exp 1.0000000000002   -> 2.718282         Inexact Rounded
expx427 exp 1.0000000000003   -> 2.718282         Inexact Rounded
precision:    2
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