Casio FX-9860GII-L-IH User Guide - Page 87
Logarithmic and Exponential Functions
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2-4-5 Function Calculations k Logarithmic and Exponential Functions • Be sure to specify Comp for Mode in the Setup screen. Example log 1.23 (log101.23) = 0.08990511144 l1.23w Operation log2 8 = 3 K4(CALC)6(g)4(logab)2,8)w 4(MATH)2(logab) 2e8w In 90 (loge90) = 4.49980967 101.23 = 16.98243652 (To obtain the antilogarithm of common logarithm 1.23) e4.5 = 90.0171313 (To obtain the antilogarithm of natural logarithm 4.5) I90w !l(10x)1.23w !I(ex)4.5w (-3)4 = (-3) × (-3) × (-3) × (-3) = 81 (-3)M4w -34 = -(3 × 3 × 3 × 3) = -81 -3M4w 1 7 123 (= 123 7 ) = 1.988647795 7!M(x )123w !M(x )7e123w 2 + 3 × 3 64 - 4 = 10 2+3*3!M(x 2+3*!M(x )64-4w*1 )3e64e-4w *1^ (x y) and x take precedence over multiplication and division. # You cannot use a differential, quadratic differential, integration, Σ, maximum/minimum value, Solve, RndFix or log ab calculation expression inside of a log ab calculation term. # The Linear input mode and Math input mode produce different results when two or more powers are input in series, like: 2M3M2. Linear input mode: 2^3^2 = 64 Math input mode: = 512 This is because the Math input mode internally treats the above input as: 2^(3^(2)). 20050401