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DENNERT & PAPE   ( 25 cm Scales )
( 400g Version !)



D E N N E R T   &   P A P E ,        Hamburg-Altona / Germany     (19??)
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A T T E N T I O N :   This  SR  is  a  400g  ( "NEW-GRAD" )  Version !!!
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   sin( 0g ) = 0 ;     sin( 50g )    = 0.7071 ;     sin( 100g ) = 1 ;
   cos( 0g ) = 1 ;     cos( 66.67g ) = 0.5 ;        cos( 100g ) = 0 ;
   tan( 0g ) = 0 ;     tan( 50g )    = 1 ;          cot( 50g )  = 1
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S C A L E S   of  the   DENNERT  &  PAPE    G E O D E T I C   Slide Rule
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Front:                         cm / K, A // B, 1-cos, C // D, lgX / 1:25

 

 

Back:                                           cm // S, T, sec2, T // _

 
                         sec(x) = 1 / cos(x)
 

                                   Historical Remarks ...
impressum:
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© C.HAMANN      http://public.beuth-hochschule.de/~hamann       07/25/16