1if (typeof T === 'undefined') require('../setup'); 2 3T('cos', function () { 4 5 function t(n, pr, rm, expected) { 6 Decimal.precision = pr; 7 Decimal.rounding = rm; 8 T.assertEqual(expected, new Decimal(n).cos().valueOf()); 9 } 10 11 Decimal.config({ 12 precision: 40, 13 rounding: 4, 14 toExpNeg: -9e15, 15 toExpPos: 9e15, 16 minE: -9e15, 17 maxE: 9e15 18 }); 19 20 t('NaN', 40, 4, 'NaN'); 21 t('0', 20, 4, '1'); 22 t('-0', 20, 4, '1'); 23 t('Infinity', 40, 4, 'NaN'); 24 t('-Infinity', 40, 4, 'NaN'); 25 26 t('0.00006', 10, 2, '0.9999999983'); // 0.9999999982000000005399999999352000000041657142... 27 t('0.000000065', 18, 4, '0.999999999999997888'); // 0.99999999999999788750000000000074377... 28 29 t('14044.44444444444', 10, 4, '0.04549771706'); 30 t('-14044.44444444444', 10, 4, '0.04549771706'); 31 t('5', 8, 5, '0.28366219'); 32 t('6723', 3, 3, '0.999'); 33 t('2.04964', 8, 2, '-0.46075321'); 34 t('476', 6, 1, '0.0486937'); 35 t('5298612.00024', 2, 3, '-0.26'); 36 t('12.5703596425462281326763791506392117455', 8, 4, '0.99999204'); 37 t('2797', 8, 1, '0.55491269'); 38 t('0.3834777777', 3, 4, '0.927'); 39 t('16355.3334', 9, 4, '0.979658167'); 40 t('0.997737586545708065463833973312637902054356957830033', 5, 5, '0.5422'); 41 t('7803700', 4, 2, '-0.9032'); 42 t('841822094288189413002174891207354317', 5, 2, '-0.86017'); 43 t('67942', 8, 3, '-0.33958641'); 44 t('899999929799999999999919999999999999999999999999999999999999999999999999.99999', 7, 5, '-0.8773558'); 45 t('0.00058849862302952064864312588263928354414752285369272291803582192021298679', 10, 6, '0.9999998268'); 46 t('20000000923980793370370313003363533778888888888.7777777777777777', 9, 4, '-0.801329944'); 47 t('49.73807738608', 3, 1, '0.864'); 48 t('88000', 5, 3, '-0.66135'); 49 t('75465048517642702658117738264729233565816440737178306250850477902340698', 7, 2, '0.4233356'); 50 t('0.704', 10, 2, '0.7622592047'); 51 t('0.94828132184399998008581', 6, 5, '0.58308'); 52 t('0.8', 8, 3, '0.6967067'); 53 t('0.002', 6, 2, '0.999999'); 54 t('61688.77777079779777777777777797777777777777777', 1, 4, '0.9'); 55 t('8111', 7, 2, '0.8296971'); 56 t('22.1513', 10, 6, '-0.9872031473'); 57 t('800000000', 8, 2, '-0.98618707'); 58 t('7332769805669601096865534', 4, 0, '0.8803'); 59 t('2116627523999999999999999999', 2, 5, '0.58'); 60 t('16967658790', 8, 4, '0.70645039'); 61 t('2539668340778777961946252621835163455556224034680348035809827426444170650792306', 8, 2, '-0.49939729'); 62 t('36', 7, 1, '-0.1279636'); 63 t('61999992993999.999999999999999999949999999999999994999929999999999992999999999999999999999', 2, 6, '0.99'); 64 t('0.218944155186302719769455371933055277727070161042429', 10, 4, '0.9761273219'); 65 t('20', 2, 3, '0.4'); 66 t('173215504685358227465651988', 10, 4, '-0.671213895'); 67 t('5769000000000.2222222222222222', 10, 3, '0.4282801932'); 68 t('0.5', 3, 1, '0.877'); 69 t('5000000000053', 5, 6, '0.85063'); 70 t('281084', 5, 6, '0.83761'); 71 t('80.6', 9, 2, '0.470085225'); 72 t('447162', 7, 4, '0.9642869'); 73 t('6856.6636666666626606066666', 6, 6, '-0.137265'); 74 t('7.37514', 7, 4, '0.4607514'); 75 t('1.29', 3, 4, '0.277'); 76 t('9', 10, 5, '-0.9111302619'); 77 t('5067', 4, 0, '-0.9254'); 78 t('482222222222.62217863079410578', 3, 1, '-0.997'); 79 t('4.2202926299999999999959999999999999999999999999999999990999999999999999999999', 10, 6, '-0.4724745315'); 80 t('24714170816959', 8, 1, '-0.99806747'); 81 t('31365220956895733422', 5, 3, '0.99149'); 82 t('377469441384376095492196870000863.83493122', 1, 0, '0.8'); 83 t('0.1175', 1, 1, '0.9'); 84 t('223953406565183766798339942076619761', 5, 4, '0.77106'); 85 t('9.4', 7, 0, '-0.9996931'); 86 t('67777777777777733221519976680533200000000000', 7, 4, '0.883886'); 87 t('3', 7, 0, '-0.9899925'); 88 t('99127.77777', 8, 3, '-0.44933878'); 89 t('95555555550.5555555515555555555555555555550055555555555560555555559', 3, 0, '0.0823'); 90 t('1.3830713', 3, 5, '0.187'); 91 t('59', 9, 5, '-0.771080223'); 92 t('1.1', 7, 1, '0.4535961'); 93 t('1090000000000000000000000000000000000050000000.00004', 4, 1, '0.9972'); 94 t('8', 1, 6, '-0.1'); 95 t('43019456219304869332859776', 8, 1, '-0.99906433'); 96 t('0.0000003104573823727508545651739730202238202717472186710001424', 7, 4, '1'); 97 t('81888888888.5555555555555555511111111111111111114304', 8, 6, '0.86581506'); 98 t('848765718488021014558633685913717744363956181398886593', 5, 0, '-0.97123'); 99 t('0.4338', 69, 3, '0.907375081713258312704647471639381401468307894324094984616218937905432'); 100 t('6647167168310148646127', 41, 1, '-0.67876552621688089570465682794229097436017'); 101 t('14', 44, 5, '0.13673721820783359424892887667173824055164518'); 102 t('0.815', 74, 3, '0.68586839345673735262969403373783813324713582642679411838288343756307680681'); 103 t('52666376666220.66', 8, 2, '-0.46217165'); 104 t('0.1', 58, 6, '0.9950041652780257660955619878038702948385762254150840359594'); 105 t('5.481638560270924097', 46, 5, '0.6955963080641265200604938991229596548878269881'); 106 t('616019185645542611168895104511361.514', 73, 0, '-0.9897418432019178091874564214082330932214823767149588163455308944210649199'); 107 t('58872.6729', 27, 5, '0.71551991401684231627099417'); 108 t('0.00000000986995340365791470449236832278868084019660524206930178008', 33, 1, '0.999999999999999951292009904810772'); 109 t('200000000000000000000', 24, 1, '0.167301557725715824849981'); 110 t('8712357290413741268816184846819797318515482698552148280140735653', 57, 0, '-0.279047254515165435013067136950333012052507338721363544685'); 111 t('0.0177165009539797142337288907', 37, 1, '0.9998430669018118198896427823538202954'); 112 t('255555555555555775027123062979747796598651156132669853568621902', 14, 2, '-0.99883756464211'); 113 t('3741565840746605.71876151239588', 15, 0, '-0.930123581114026'); 114 t('3050000000000000000000200000000000000000000.0000000000000000000000008', 41, 3, '-0.33127228153577434134804953378906485886176'); 115 t('0.33482', 27, 4, '0.944469472783453774254728912'); 116 t('0.1979574070039662', 30, 0, '0.980470333633282159348863278164'); 117 t('960492.3601219999999', 74, 6, '0.78272168046024997208016985369610426247753755795663609587331768113997535495'); 118 t('0.1145342', 57, 0, '0.993448125551484394628225244895937689399175688856818869855'); 119 t('99999999999999999999999.99', 70, 0, '-0.7059760628345569635155393670172360201795320597371430862306924466086157'); 120 t('0.10859933721171128209598967066', 80, 4, '0.99410888528803407646108267824473898405842663808987770888683180574685964084716924'); 121 t('2813920.875088303362819', 33, 2, '-0.866254989781355498995879756871368'); 122 t('35999999999999999999999999999999999999999.999999999999999999999999919', 38, 3, '-0.9562598584240982386154988349219959087'); 123}); 124