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g21 [2017/01/25 18:26]
arthur
g21 [2017/01/25 18:35]
arthur
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 G21 means "all moves starting now have their units specified in millimeters ( metric units )". G21 means "all moves starting now have their units specified in millimeters ( metric units )".
  
-G21's evil twin is [[[G20]]], which means "all moves starting now have their units specified in inches ( imperial units )".+G21's evil twin is [[G20]], which means "all moves starting now have their units specified in inches ( imperial units )".
  
 An inch is 25.4 millimeters. An inch is 25.4 millimeters.