inch	inch	mm
1/64	0.016	0.397
1/32	0.031	0.794
3/64	0.047	1.191
1/16	0.063	1.588
5/64	0.078	1.984
3/32	0.094	2.381
7/64	0.109	2.778
1/8	0.125	3.175
9/64	0.141	3.572
5/32	0.156	3.969
11/64	0.172	4.366
3/16	0.188	4.763
13/64	0.203	5.159
7/32	0.219	5.556
15/64	0.234	5.953
1/4	0.250	6.350
17/64	0.266	6.747
9/32	0.281	7.144
19/64	0.297	7.541
5/16	0.313	7.938
21/64	0.328	8.334
11/32	0.344	8.731
23/64	0.359	9.128
3/8	0.375	9.525
25/64	0.391	9.922
13/32	0.406	10.319
27/64	0.422	10.716
7/16	0.438	11.113
29/64	0.453	11.509
15/32	0.469	11.906
31/64	0.484	12.303
1/2	0.500	12.700
33/64	0.516	13.097
17/32	0.531	13.494
35/64	0.547	13.891
9/16	0.563	14.288
37/64	0.578	14.684
19/32	0.594	15.081
39/64	0.609	15.478
5/8	0.625	15.875
41/64	0.641	16.272
21/32	0.656	16.669
43/64	0.672	17.066
11/16	0.688	17.463
45/64	0.703	17.859
23/32	0.719	18.256
47/64	0.734	18.653
3/4	0.750	19.050
49/64	0.766	19.447
25/32	0.781	19.844
51/64	0.797	20.241
13/16	0.813	20.638
53/64	0.828	21.034
27/32	0.844	21.431
55/64	0.859	21.828
7/8	0.875	22.225
57/64	0.891	22.622
29/32	0.906	23.019
59/64	0.922	23.416
15/16	0.938	23.813
61/64	0.953	24.209
31/32	0.969	24.606
63/64	0.984	25.003
1	1.000	25.400

Number Notation

Hierarchy of Numbers

0 ([text:zero]) 1 ([text:one]) 2 ([text:two]) 3 ([text:three]) 4 ([text:four]) 5 ([text:five]) 6 ([text:six]) 7 ([text:seven]) 8 ([text:eight]) 9 ([text:nine]) 10 ([text:ten]) 10^2 ([text:hundred]) 10^3 ([text:thousand])

[text:name]	[text:American-French]	[text:English-German]
[text:million]	10^6	10^6
[text:billion]	10^9	10^12
[text:trillion]	10^12	10^18
[text:quadrillion]	10^15	10^24
[text:quintillion]	10^18	10^30
[text:sextillion]	10^21	10^36
[text:septillion]	10^24	10^42
[text:octillion]	10^27	10^48
[text:nonillion]	10^30	10^54
[text:decillion]	10^33	10^60
[text:undecillion]	10^36	10^66
[text:duodecillion]	10^39	10^72
[text:tredecillion]	10^42	10^78
[text:quatuordecillion]	10^45	10^84
[text:quindecillion]	10^48	10^90
[text:sexdecillion]	10^51	10^96
[text:septendecillion]	10^54	10^102
[text:octodecillion]	10^57	10^108
[text:novemdecillion]	10^60	10^114
[text:vigintillion]	10^63	10^120

googol	10^100
googolplex	10^googol = 10^(10^100)

SI Prefixes

Number	Prefix	Symbol
10 ¹	deka-	da
10 ²	hecto-	h
10 ³	kilo-	k
10 ⁶	mega-	M
10 ⁹	giga-	G
10 ¹²	tera-	T
10 ¹⁵	peta-	P
10 ¹⁸	exa-	E
10 ²¹	zeta-	Z
10 ²⁴	yotta-	Y

Number	Prefix	Symbol
10 ^-1	deci-	d
10 ^-2	centi-	c
10 ^-3	milli-	m
10 ^-6	micro-	u (greek mu)
10 ^-9	nano-	n
10 ^-12	pico-	p
10 ^-15	femto-	f
10 ^-18	atto-	a
10 ^-21	zepto-	z
10 ^-24	yocto-	y

[text:Roman Numerals]

I=1	V=5	X=10	L=50	C=100	D=500	M=1 000
	_ V=5 000	_ X=10 000	_ L=50 000	_ C = 100 000	_ D=500 000	_ M=1 000 000

[text:Examples]:

1 = I
2 = II
3 = III
4 = IV
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
10 = X

11 = XI
12 = XII
13 = XIII
14 = XIV
15 = XV
16 = XVI
17 = XVII
18 = XVIII
19 = XIX
20 = XX
21 = XXI

25 = XXV
30 = XXX
40 = XL
49 = XLIX
50 = L
51 = LI
60 = LX
70 = LXX
80 = LXXX
90 = XC
99 = XCIX

[text:Number Base Systems]

[text:decimal]	[text:binary]	[text:ternary]	oct	hex
0	0	0	0	0
1	1	1	1	1
2	10	2	2	2
3	11	10	3	3
4	100	11	4	4
5	101	12	5	5
6	110	20	6	6
7	111	21	7	7
8	1000	22	10	8
9	1001	100	11	9
10	1010	101	12	A
11	1011	102	13	B
12	1100	110	14	C
13	1101	111	15	D
14	1110	112	16	E
15	1111	120	17	F
16	10000	121	20	10
17	10001	122	21	11
18	10010	200	22	12
19	10011	201	23	13
20	10100	202	24	14

[text:JavaScript Base Conversion Calculator] ([text:This converts non-integer values & negative bases too!])

Downloads

http://math2.org/math/download.htm

Algebraic Graphs

Conic Sections (see also Conic Sections)	Point x^{^2} + y^{^2} = 0	Circle x^{^2} + y^{^2} = r^{^2}
Ellipse x^{^2} / a^{^2} + y^{^2} / b^{^2} = 1	Ellipse x^{^2} / b^{^2} + y^{^2} / a^{^2} = 1	Hyperbola x^{^2} / a^{^2} - y^{^2} / b^{^2} = 1
Parabola 4px = y^{^2}	Parabola 4py = x^{^2}	Hyperbola y^{^2} / a^{^2} - x^{^2} / b^{^2} = 1
For any of the above with a center at (j, k) instead of (0,0), replace each x term with (x-j) and each y term with (y-k) to get the desired equation.