Traditional Abacus and Bead Arithmetic/Resources for contributors

Some simple tools This book makes heavy use of abacus procedure tables like: + Caption text Abacus Comment ABCDEFGHIJKLM    4567890123 Entering radicand starting in CD (first group)  2 First root digit in B   -4 Subtract square of B from first group  2  567890123 Null remainder  4  567890123 Doubling B. Appending next group to remainder  41 567890123 5/4≈1, try 1 as next root digit    -4 Continue division by 41, subtract 1✕41 from EF     -1  41 157890123 15 as remainder  42 157890123 Double second root digit  42 157890123 Append next group  423157890123 157/42≈3, try 3 as next root digit    -12 Continue division by 423, subtract 3✕423 from E-H     -06      -09  423 30990123 309 as remainder  426 30990123 Double third root digit  426 30990123 Append next group     etc. and could also be enhanced by using some abacus diagrams here and there like this one: + Write caption here!ABCDEFGHIJKLM 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px 25px91890010000999 If you plan to contribute to this book, you may find some simple tools located at User:Jccsvq/Abacus diagrams and procedure tables that may make some of these tasks easier for you. (Jccsvq (discuss • contribs) 05:46, 22 August 2021 (UTC))