Casio FX-CG10 Software User Guide - Page 62
Trigonometric and Inverse Trigonometric Functions, Logarithmic and, Exponential Functions, Example
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k Trigonometric and Inverse Trigonometric Functions • Be sure to set the angle unit before performing trigonometric function and inverse trigonometric function calculations. (90° = π 2 radians = 100 grads) • Be sure to specify Comp for Mode in the Setup screen. Example Operation cos ( π 3 rad) = 1 2 (0.5) !m(SET UP)cccccc2(Rad)J c$!E(π)c3w c(!E(π)/3)w 2 • sin 45° × cos 65° = 0.5976724775 !m(SET UP)cccccc1(Deg)J 2*s45*c65w*1 sin-10.5 = 30° (x when sinx = 0.5) !s(sin-1) 0.5*2w *1 * can be omitted. *2 Input of leading zero is not necessary. k Logarithmic and Exponential Functions • Be sure to specify Comp for Mode in the Setup screen. Example Operation log 1.23 (log101.23) = 0.08990511144 l1.23w log28 = 3 (-3)4 = (-3) × (-3) × (-3) × (-3) = 81 1 7 123 (= 1237) = 1.988647795 4(MATH)2(logab) 2e8w K4(CALC)6(g)4(logab) 2,8)w (-3)M4w !M(x') 7e123w 7!M(x')123w • The Linear input/output mode and Math input/output mode produce different results when two or more powers are input in series, like: 2 M 3 M 2. Linear input/output mode: 2^3^2 = 64 Math input/output mode: 232 = 512 This is because the Math input/output mode internally treats the above input as: 2^(3^(2)). 2-16