Sharp COMPET-23 Instruction Manual

15. Cubic root extract ionExpress the approximate expression of VR = (2N + R) x S.Steps : (See attached table on page 32 .)1. Take 3 digits from the figures counting from the left.Determine N, which is the nearest value in the Cubic Root Table onpage 32.2. Divide R into groups of three digits each counting from the decimal point.Select S from row 1N when the highest groups of figures consists of one digit,row 10N in the case of two digits, and row lOON in the case of three digits.3. Calculate (2N + R) x SEx. 3..j539871. From the table on page 33, N=542=54200 (to equalize the digits)2. Then determine S=232744 from the row 10N.3. Calculate (2 x 5 42 00 + 53987) x 232744Steps:Operation Display Note1 I CD 02 0 0 Tabulation dial3 2 24 @ 2 @ lamp on5 54200 542006 § 108400 @ lamp off7 53987 539878 §) 1623879 0 162387 @ lamp on10 232744 23274411 §) 37794599928 ® lamp o ffNote : Six digits from the top are available.Positi on of the decimal point is decided by dividing R int o groups of three digitscounting from the decimal point.Take V53987 ,for example , 53987 is divided into tw~ groups (53; 9~7). Thedecimal point of the answer, th eref or e, must be pla ce d between the 2nd and the3rd digit counting from the left. Th e answer is 37.79452 6