User`s guide
20 — DigiRoller
™
Plus II
Step: Key:
[RESET]
Roll width and store [W]
Find area [L x W]
Store area in memory [M+] 
Step 2 - Find area to be subtracted
Step: Key:
[RESET]
Roll length of empty 
space and store [L]
[RESET]
Roll width and store  [W]
Find area [L x W]
Subtract from total
in memory [M-] 
Calculate actual area [Rcl] [M+]
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