User manual CASIO FX-85W

[. . . ] The alternate function is indicated by the text printed above the key. Alternate function sin Keycap function ­1 s D · The following shows what the different colors of the alternate function key text mean. If key marking text is this color: Yellow Red It means this: Press 1 and then the key to access the applicable function. Press S and then the key to input the applicable variable, constant, or symbol. · The following shows an example of how an alternate function operation is represented in this User's Guide. Example: 1s(sin­1)1= Indicates the function that is accessed by the key operation (1s) before it. [. . . ] Appendix <#013> Convert 2. 255 to its sexagesimal equivalent. Using Multi-statements in Calculations You can use the colon character (:) to connect two or more expressions and execute them in sequence from left to right when you press =. Example: To create a multi-statement that performs the following two calculations: 3 + 3 and 3 × 3 LINE 3+3SW(:)3*3 Disp = "Disp" indicates this is an intermediate result of a multi-statement. = E-22 Using Calculation History Memory and Replay (COMP) Calculation history memory maintains a record of each calculation expression you input and execute, and its result. You can use calculation history memory in the COMP Mode (N1) only. Recalling Calculation History Memory Contents Press f to back-step through calculation history memory contents. Calculation history memory shows both calculation expressions and results. Example: LINE 1+1= 2+2= 3+3= f f · Note that calculation history memory contents are cleared whenever you turn off the calculator, press the O key, change to the calculation mode or the input/output format, or perform any reset operation. · Calculation history memory is limited. When the calculation you are performing causes calculation history memory to become full, the oldest calculation is deleted automatically to make room for the new calculation. Replay Function While a calculation result is on the display, you can press A and then d or e to edit the expression you used for the previous calculation. If you are using Linear format, you can display the expression by pressing d or e, without pressing A first. Appendix <#014> E-23 Using Calculator Memory Memory Name Description Calculation results can be added to or subtracted from independent memory. The "M" display indicator indicates data in independent memory. Six variables named A, B, C, D, X, and Y can be used for storage of individual values. · Certain function calculations may take some time to display calculation results. Before performing an operation, be sure to wait until execution of the current operation is complete. You can interrupt an ongoing operation by pressing A. k Pi () and Natural Logarithm Base e You can input pi () or natural logarithm base e into a calculation. The following shows the required key operations and the values this calculator uses for pi () and e. = 3. 14159265358980 (15()) e = 2. 71828182845904 (S5(e)) k Trigonometric and Inverse Trigonometric Functions · The angle unit required by trigonometric and inverse trigonometric functions is one specified as the calculator's default angle unit. Before performing a calculation, be sure to specify the default angle unit you want to use. See "Specifying the Default Angle Unit" for more information. Appendix <#016> sin 30 = 0. 5, sin­10. 5 = 30 k Hyperbolic and Inverse Hyperbolic Functions Pressing the w key displays a menu of functions. Press the number key that corresponds to the function you want to input. Appendix <#017> sinh 1 = 1. 175201194, cosh­1 1 = 0 E-27 k Converting an Input Value to the Calculator's Default Angle Unit After inputting a value, press 1G(DRG') to display the angle unit specification menu shown below. Press the number key that corresponds to the angle unit of the input value. [. . . ] (3) If the above steps do not correct your problem, press the O key. This will cause the calculator to perform a routine that checks whether calculation functions are operating correctly. If the calculator discovers any abnormality, it automatically initializes the calculation mode and clears memory contents. For details about initialized settings, see "Initializing the Calculation Mode and Other Settings" under "Calculation Modes and Calculator Setup". [. . . ]