The Student's t-distribution table

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Confidence probability:

Get the Student's coefficient!

Student's Table

Число степеней свободы f = n - 1	n	Доверительная вероятность
		0.90	0.95	0.99	0.999
1	2	6.3137515148	12.7062047364	63.6567411629	636.619249432
2	3	2.91998558036	4.30265272991	9.92484320092	31.599054577
3	4	2.3533634348	3.18244630528	5.84090929976	12.9239786366
4	5	2.13184678134	2.7764451052	4.60409487142	8.61030158138
5	6	2.01504837267	2.57058183661	4.03214298356	6.86882663987
6	7	1.94318028039	2.44691184879	3.70742802132	5.95881617993
7	8	1.89457860506	2.36462425101	3.49948329735	5.40788252098
8	9	1.85954803752	2.30600413503	3.35538733133	5.04130543339
9	10	1.83311293265	2.26215716274	3.24983554402	4.78091258593
10	11	1.81246112281	2.22813885196	3.16927266718	4.5868938587
11	12	1.7958848187	2.20098516008	3.10580651322	4.43697933823
12	13	1.78228755565	2.17881282966	3.05453958834	4.31779128361
13	14	1.77093339599	2.16036865646	3.01227583821	4.22083172771
14	15	1.76131013577	2.14478668792	2.97684273411	4.14045411274
15	16	1.75305035569	2.13144954556	2.94671288334	4.0727651959
16	17	1.74588367628	2.11990529922	2.92078162235	4.0149963326
17	18	1.73960672608	2.10981557783	2.89823051963	3.96512626361
18	19	1.73406360662	2.10092204024	2.87844047271	3.92164582001
19	20	1.72913281152	2.09302405441	2.86093460645	3.88340584948
20	21	1.72471824292	2.08596344727	2.84533970978	3.84951627298
21	22	1.72074290281	2.07961384473	2.83135955802	3.81927716303
22	23	1.71714437438	2.0738730679	2.8187560606	3.79213067089
23	24	1.71387152775	2.06865761042	2.80733568377	3.76762680377
24	25	1.71088207991	2.06389856163	2.79693950477	3.74539861893
25	26	1.70814076125	2.05953855275	2.78743581368	3.72514394948
26	27	1.70561791976	2.05552943864	2.77871453333	3.70661174331
27	28	1.70328844572	2.05183051648	2.77068295712	3.68959171334
28	29	1.70113093427	2.0484071418	2.76326245546	3.67390640062
29	30	1.69912702653	2.04522964213	2.75638590367	3.6594050194
30	31	1.69726089436	2.0422724563	2.74999565357	3.645958635
40	41	1.68385101139	2.021075383	2.70445926743	3.55096576086
60	61	1.67064886465	2.00029782106	2.66028303115	3.4602004692
120	121	1.65765089935	1.97993040505	2.61742114477	3.37345376507
999999.0	1000000.0	1.64485515072	1.95996635682	2.57583422011	3.29053646126

Learn more about Student's coefficient.

The above examples also contain:

• the modulus or absolute value: absolute(x) or |x|
• square roots sqrt(x),
  cubic roots cbrt(x)
• trigonometric functions:
  sinus sin(x), cosine cos(x), tangent tan(x), cotangent ctan(x)
• exponential functions and exponents exp(x)
• inverse trigonometric functions:
  arcsine asin(x), arccosine acos(x), arctangent atan(x), arccotangent acot(x)
• natural logarithms ln(x),
  decimal logarithms log(x)
• hyperbolic functions:
  hyperbolic sine sh(x), hyperbolic cosine ch(x), hyperbolic tangent and cotangent tanh(x), ctanh(x)
• inverse hyperbolic functions:
  hyperbolic arcsine asinh(x), hyperbolic arccosinus acosh(x), hyperbolic arctangent atanh(x), hyperbolic arccotangent acoth(x)
• other trigonometry and hyperbolic functions:
  secant sec(x), cosecant csc(x), arcsecant asec(x), arccosecant acsc(x), hyperbolic secant sech(x), hyperbolic cosecant csch(x), hyperbolic arcsecant asech(x), hyperbolic arccosecant acsch(x)
• rounding functions:
  round down floor(x), round up ceiling(x)
• the sign of a number:
  sign(x)
• for probability theory:
  the error function erf(x) (integral of probability), Laplace function laplace(x)
• Factorial of x:
  x! or factorial(x)
• Gamma function gamma(x)
• Lambert's function LambertW(x)
• Trigonometric integrals: Si(x), Ci(x), Shi(x), Chi(x)

The insertion rules

The following operations can be performed

2*x

- multiplication

3/x

- division

x^2

- squaring

x^3

- cubing

x^5

- raising to the power

x + 7

- addition

x - 6

- subtraction

Real numbers

insert as 7.5, no 7,5

Constants

pi

- number Pi

e

- the base of natural logarithm

i

- complex number

oo

- symbol of infinity