1/2 One half 2-in-1 laptop 1/2 − 1/4 + 1/8 − 1/16 + ⋯ 1-2-3 1 − 2 + 3 − 4 + ⋯ 1/2 + 1/4 + 1/8 + 1/16 + ⋯ 2-Hydroxyacylsphingosine 1-beta-galactosyltransferase 1 + 2 + 3 + 4 + ⋯ 1 − 2 + 4 − 8 + ⋯ 1 + 2 + 4 + 8 + ⋯ 1/2 & 1/2 2 Corinthians 1 1-hydroxy-2-naphthoate hydroxylase 0 + 2 = 1 ½ Prothrombin fragment 1+2 4.3.2.1. 2-Ethyl-1-butanol 2-Methyl-1-pentanol 1-2-Switch 1-Aminopropan-2-ol Landing Zones 1 and 2 2-alkyn-1-ol dehydrogenase 2-Carboxy-D-arabinitol-1-phosphatase 1-alkyl-2-acetylglycerol O-acyltransferase 1–2–1–1 zone press Schweizer SGU 1-2 3.2.1. 4, 3, 2, 1 Lotus 1-2-3 HH 1/2 Rings 1 and 2 2 Samuel 1 Everybody 1-2-Switch! Windows 2.…
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One half
2-in-1 laptop
1/2 − 1/4 + 1/8 − 1/16 + ⋯
1-2-3
1 − 2 + 3 − 4 + ⋯
1/2 + 1/4 + 1/8 + 1/16 + ⋯
2-Hydroxyacylsphingosine 1-beta-galactosyltransferase
1 + 2 + 3 + 4 + ⋯
1 − 2 + 4 − 8 + ⋯
1 + 2 + 4 + 8 + ⋯
1/2 & 1/2
2 Corinthians 1
1-hydroxy-2-naphthoate hydroxylase
0 + 2 = 1 ½
Prothrombin fragment 1+2
4.3.2.1.
2-Ethyl-1-butanol
2-Methyl-1-pentanol
1-2-Switch
1-Aminopropan-2-ol
Landing Zones 1 and 2
2-alkyn-1-ol dehydrogenase
2-Carboxy-D-arabinitol-1-phosphatase
1-alkyl-2-acetylglycerol O-acyltransferase
1–2–1–1 zone press
Schweizer SGU 1-2
3.2.1.
4, 3, 2, 1
Lotus 1-2-3
HH 1/2
Rings 1 and 2
2 Samuel 1
Everybody 1-2-Switch!
Windows 2.1
Spin-1/2
Type 1 and type 2 sequence
IFIP Working Group 2.1
Matthew 2:1
IPhone OS 2