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MANTISSA - VARIANT  II   ( 25 cm Scales )



VEB MANTISSA, Dresden / (GDR) Germany                 (1973)
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SCALES  of  the   MANTISSA    » VARIANT II «    Nr.1731573/4
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Front Side           [ inverse / RED ]             Back Side
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                                       ( 0 ... 25 cm Ruler )
ST      arc(0.01X)
T       tan(0.1X)           
K       X3                               L        lgX
A       X2                               DF       πX
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B       X2                               CF       πX
[CI]    [1/X]                            [CIF]    [1/πX]
C       X                                C        X
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D       X                                D        X
[P]     [sqrt(1 - (0.1X)2)]              LL1      exp(0.01X)
S       sin(0.1X)                        LL2      exp(0.1X)
                                         LL3      exp(X)

R E M A R K S :                   (  1° = 60' ;   1' = 60" )
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The  TRIGONOMETRIC SCALES  are divided in  MINUTES & SECONDS

Historical Remarks ...

This slide rule was on the market before with the same MODEL
NUMBER and the same INSTRUCTION as  »MEISSNER-VARIANT-II«

impressum:
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http://public.beuth-hochschule.de/~hamann           09/10/09