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Old 6th Jun 2013, 08:11
  #10 (permalink)  
dixi188
 
Join Date: Apr 2004
Location: Dorset UK
Age: 70
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rennaps.

A calculator????

Slide rule I think!!!!

I never could get the hang of moving the decimal point every time you moved from one end to the other.
I used to do an approximation of the result on paper to get the decimal point right.
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