Casio FX300ES Operating Guide - Page 20

sin, cos, tan, sin−1, cos−1, tan−1: Trigonometric functions. Specify the angle unit before performing calculations. See 1. sinh, cosh, tanh, sinh−1, cosh−1, tanh−1: Hyperbolic functions. Input a function from the menu that appears when you press w. The angle unit setting does not affect calculations. See 2. °, r, g: These functions specify the angle unit. ° specifies degrees, r radians, and g grads. Input a function from the menu that appears when you perform the following key operation: 1G(DRG'). See 3. $, % : Exponential functions. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See 4. log: Logarithmic function. Use the l key to input logab as log (a, b). Base 10 is the default setting if you do not input anything for a. The & key also can be used for input, but only while Natural Display is selected. In this case, you must input a value for the base. See 5. ln: Natural logarithm to base e. See 6. x2, x3, x^, ), #, ", x−1: Powers, power roots, and reciprocals. Note that the input methods for x^, ), #, and " are different depending upon whether you are using Natural Display or Linear Display. See 7. Note: The following functions cannot be input in consecutive sequence: x2, x3, x^, x−1. If you input 2ww, for example, the final w will be ignored. To input 222, input 2w, press the d key, and then press w(B). Pol, Rec : Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. See 8. Pol(x, y) = (r, Ƨ) Rectangular Coordinates (Rec) Rec(r, Ƨ) = (x, y) Polar Coordinates (Pol) Specify the angle unit before performing calculations. The calculation result for r and Ƨ and for x and y are each assigned respectively to variables X and Y. Calculation result θ is displayed in the range of −180° Ͻ θ Ϲ 180°. x ! : Factorial function. See 9. Abs : Absolute value function. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See 10. Ran# : Generates a 3-digit pseudo random number that is less than 1. The result is displayed as a fraction when Natural Display is selected. See 11 . RanInt# : For input of the function of the form RanInt#(a, b), which generates a random integer within the range of a to b. See 12. nPr, nCr : Permutation (nPr) and combination (nCr) functions. See 13 . Rnd : The argument of this function is made a decimal value and then rounded in accordance with the current number of display digits setting (Norm, Fix, or Sci). With Norm 1 or Norm 2, the argument is rounded off to 10 digits. With Fix and Sci, the argument is rounded off to the specified digit. When Fix 3 is the display digits setting, for example, the result of 10 ÷ 3 is displayed as 3.333, while the calculator maintains a value of 3.33333333333333 (15 digits) internally for calculation. In the case of E-19