Sharp EL738C EL-738 Operation Manual - Page 79

Calculation ranges of functions • Within the ranges specified, this calculator is accurate to within ±1 of the least significant digit of the mantissa. However, a calculation error increases in continuous calculations due to accumulation of each calculation error. (This is the same for financial calculations, scientific calculations [yx, x , ex, ln, n!, etc.], where continuous calculations are performed internally.) Additionally, a calculation error will accumulate and become larger in the vicinity of inflection points and singular points of functions. In financial calculations, a calculation error increases if the interest is low or the number of payments is high. Press s if you'd like to cancel the calculation while the "calculating!" screen is displayed. • Calculation ranges ±10-99 to ±9.999999999 × 1099 and 0. If the absolute value of an entry or a final or intermediate result of a calculation is less than 10-99, the value is considered to be 0 in calculations and in the display. Function sin x, cos x, tan x sin-1 x, cos-1 x tan-1 x In x, log x yx Calculation range DEG: | x | < 1010 (tan x : | x | ≠ 90 (2n - 1))* RAD: | x 1010 180 (tan x : | x | ≠ - π 2 (2n - 1))* GRAD: | x | < - 10 9 × 1010 (tan x : | x | ≠ 100 (2n - 1))* | x | ≤ 1 | x | < 10100 10-99 ≤ x < 10100 • y > 0: -10100 < x log y < 100 • y = 0: 0 < x < 10100 • y < 0: x = n (0 < | x | < 1: -1x
= 2n - 1, x ≠ 0),* -10100 < x log | y | < 100 78