Sharp EL-5100 Instruction Manual page 17

e. Roots
Calculate: y /2 5
Key in: IV" I 25 1 = 1
Answer: 5
Calculate: Cube root of 27
Key in: (2nd F) E 3 27 Q=H
Answer: 3
Calculate fourth root of 81
Key in: 4 (2nd F)
HZ3
81
D=D
Answer: 3
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