餘切值角度對照表 0°到180°

cot(0°) = ∞

cot(1°) = 57.28996

cot(2°) = 28.63625

cot(3°) = 19.08114

cot(4°) = 14.30067

cot(5°) = 11.43005

cot(6°) = 9.51436

cot(7°) = 8.14435

cot(8°) = 7.11537

cot(9°) = 6.31375

cot(10°) = 5.67128

cot(11°) = 5.14455

cot(12°) = 4.70463

cot(13°) = 4.33148

cot(14°) = 4.01078

cot(15°) = 3.73205

cot(16°) = 3.48741

cot(17°) = 3.27085

cot(18°) = 3.07768

cot(19°) = 2.90421

cot(20°) = 2.74748

cot(21°) = 2.60509

cot(22°) = 2.47509

cot(23°) = 2.35585

cot(24°) = 2.24604

cot(25°) = 2.14451

cot(26°) = 2.0503

cot(27°) = 1.96261

cot(28°) = 1.88073

cot(29°) = 1.80405

cot(30°) = 1.73205

cot(31°) = 1.66428

cot(32°) = 1.60033

cot(33°) = 1.53986

cot(34°) = 1.48256

cot(35°) = 1.42815

cot(36°) = 1.37638

cot(37°) = 1.32704

cot(38°) = 1.27994

cot(39°) = 1.2349

cot(40°) = 1.19175

cot(41°) = 1.15037

cot(42°) = 1.11061

cot(43°) = 1.07237

cot(44°) = 1.03553

cot(45°) = 1

cot(46°) = 0.96569

cot(47°) = 0.93252

cot(48°) = 0.9004

cot(49°) = 0.86929

cot(50°) = 0.8391

cot(51°) = 0.80978

cot(52°) = 0.78129

cot(53°) = 0.75355

cot(54°) = 0.72654

cot(55°) = 0.70021

cot(56°) = 0.67451

cot(57°) = 0.64941

cot(58°) = 0.62487

cot(59°) = 0.60086

cot(60°) = 0.57735

cot(61°) = 0.55431

cot(62°) = 0.53171

cot(63°) = 0.50953

cot(64°) = 0.48773

cot(65°) = 0.46631

cot(66°) = 0.44523

cot(67°) = 0.42447

cot(68°) = 0.40403

cot(69°) = 0.38386

cot(70°) = 0.36397

cot(71°) = 0.34433

cot(72°) = 0.32492

cot(73°) = 0.30573

cot(74°) = 0.28675

cot(75°) = 0.26795

cot(76°) = 0.24933

cot(77°) = 0.23087

cot(78°) = 0.21256

cot(79°) = 0.19438

cot(80°) = 0.17633

cot(81°) = 0.15838

cot(82°) = 0.14054

cot(83°) = 0.12278

cot(84°) = 0.1051

cot(85°) = 0.08749

cot(86°) = 0.06993

cot(87°) = 0.05241

cot(88°) = 0.03492

cot(89°) = 0.01746

cot(90°) = 0

cot(91°) = -0.01746

cot(92°) = -0.03492

cot(93°) = -0.05241

cot(94°) = -0.06993

cot(95°) = -0.08749

cot(96°) = -0.1051

cot(97°) = -0.12278

cot(98°) = -0.14054

cot(99°) = -0.15838

cot(100°) = -0.17633

cot(101°) = -0.19438

cot(102°) = -0.21256

cot(103°) = -0.23087

cot(104°) = -0.24933

cot(105°) = -0.26795

cot(106°) = -0.28675

cot(107°) = -0.30573

cot(108°) = -0.32492

cot(109°) = -0.34433

cot(110°) = -0.36397

cot(111°) = -0.38386

cot(112°) = -0.40403

cot(113°) = -0.42447

cot(114°) = -0.44523

cot(115°) = -0.46631

cot(116°) = -0.48773

cot(117°) = -0.50953

cot(118°) = -0.53171

cot(119°) = -0.55431

cot(120°) = -0.57735

cot(121°) = -0.60086

cot(122°) = -0.62487

cot(123°) = -0.64941

cot(124°) = -0.67451

cot(125°) = -0.70021

cot(126°) = -0.72654

cot(127°) = -0.75355

cot(128°) = -0.78129

cot(129°) = -0.80978

cot(130°) = -0.8391

cot(131°) = -0.86929

cot(132°) = -0.9004

cot(133°) = -0.93252

cot(134°) = -0.96569

cot(135°) = -1

cot(136°) = -1.03553

cot(137°) = -1.07237

cot(138°) = -1.11061

cot(139°) = -1.15037

cot(140°) = -1.19175

cot(141°) = -1.2349

cot(142°) = -1.27994

cot(143°) = -1.32704

cot(144°) = -1.37638

cot(145°) = -1.42815

cot(146°) = -1.48256

cot(147°) = -1.53986

cot(148°) = -1.60033

cot(149°) = -1.66428

cot(150°) = -1.73205

cot(151°) = -1.80405

cot(152°) = -1.88073

cot(153°) = -1.96261

cot(154°) = -2.0503

cot(155°) = -2.14451

cot(156°) = -2.24604

cot(157°) = -2.35585

cot(158°) = -2.47509

cot(159°) = -2.60509

cot(160°) = -2.74748

cot(161°) = -2.90421

cot(162°) = -3.07768

cot(163°) = -3.27085

cot(164°) = -3.48741

cot(165°) = -3.73205

cot(166°) = -4.01078

cot(167°) = -4.33148

cot(168°) = -4.70463

cot(169°) = -5.14455

cot(170°) = -5.67128

cot(171°) = -6.31375

cot(172°) = -7.11537

cot(173°) = -8.14435

cot(174°) = -9.51436

cot(175°) = -11.43005

cot(176°) = -14.30067

cot(177°) = -19.08114

cot(178°) = -28.63625

cot(179°) = -57.28996

cot(180°) = ∞