#1094 · Number Theory · Digits
Subtraction and square root in base‑eight
Subtract from , then find the square root of the resulting number, expressing the root in base 8.
H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. VII. Scales of Notation, Examples VII.a, No. 14
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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).