User manual HP 12C PLATINUM FINANCIAL CALCULATOR

[. . . ] hp 12c platinum financial calculator user's guide H Edition 4 HP part number F2232-90001 File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 1 of 275 Dimension: 14. 8 cm x 21 cm Notice REGISTER YOUR PRODUCT AT: www. register. hp. com THIS MANUAL AND ANY EXAMPLES CONTAINED HEREIN ARE PROVIDED "AS IS" AND ARE SUBJECT TO CHANGE WITHOUT NOTICE. HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. SHALL NOT BE LIABLE FOR ANY ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MANUAL OR THE EXAMPLES CONTAINED HEREIN. © Copyright 1981, 1982, 1999, 2002-2005 Hewlett-Packard Development Company, L. P. [. . . ] In Run mode, however, when the Ç key is released the instruction in the program line just displayed is executed and the display then shows the result of executing that line. For example, to execute the program stored in the calculator one line at a time: File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 114 of 275 Dimension: 14. 8 cm x 21 cm Section 8: Programming Basics 115 Keystrokes (RPN mode) fs Display 124. 25 Sets calculator to Run mode and to line 000 in program memory. (Display shown assumes results remain from previous calculation. ) Keys in price of typewriter. 625 Ç 625. 001, 625. 00 36 Program line 001: \ Result of executing program line 001. Ç 002, 2. 2 Program line 002: 2. Result of executing program line 002. Ç 003, 25. 5 Program line 003: 5. Result of executing program line 003. Ç 004, 156. 25 25 Program line 004: b Result of executing program line 004. Ç 005, 468. 75 30 Program line 005: Result of executing program line 005. Ç 006, 5. 5 Program line 006: 5 Result of executing program line 006. Ç 007, 473. 75 40 Program line 007: + Result of executing program line 007 (the last line of the program). File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 115 of 275 Dimension: 14. 8 cm x 21 cm 116 Section 8: Programming Basics Keystrokes (ALG mode) fs Display 124. 25 Sets calculator to Run mode and to line 000 in program memory. (Display shown assumes results remain from previous calculation. ) Keys in price of typewriter. 625 Ç 625. 001, 625. 00 30 Program line 001: Result of executing program line 001. Ç 002, 2. 2 Program line 002: 2. Result of executing program line 002. Ç 003, 25. 5 Program line 003: 5. Result of executing program line 003. Ç 004, 156. 25 25 Program line 004: b Result of executing program line 004. Ç 005, 468. 75 40 Program line 005: + Result of executing program line 005. Ç 006, 5. 5 Program line 006: 5 Result of executing program line 006. Ç 007, 473. 75 36 Program line 007: } Result of executing program line 007 (the last line of the program). Pressing gÜ while the calculator is in Run mode sets the calculator to the previous line in program memory, then displays that line's number and the keycode of the instruction stored there, just as in Program mode. In Run mode, however, when the Ü key is released the display again shows the same number as it did before gÜ was pressed: no instruction in program memory is executed. File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 116 of 275 Dimension: 14. 8 cm x 21 cm Section 8: Programming Basics 117 Interrupting Program Execution Occasionally you'll want a program to stop executing so that you can see an intermediate result or enter new data. The hp 12c platinum provides two functions for doing so: gu (pause) and t (run/stop). Pausing During Program Execution When a running program executes a gu instruction, program execution halts for about 1 second, then resumes. During the pause, the calculator displays the last result calculated before the gu instruction was executed. If you press any key during a pause, program execution is halted indefinitely. To resume program execution at the program line following that containing the gu instruction, press t. Example: Create a program that calculates the entries in the AMOUNT, TAX, and TOTAL columns for each item on the jewelry distributor's invoice shown on the next page, and also calculates the total in each of these columns for all items on the invoice. To conserve lines of program memory, instead of keying in the tax rate before the b instruction we'll store it in register R0 and recall it before the b instruction. Before storing the program in program memory, we'll calculate the required amounts for the first item on the invoice manually. The keystroke sequence will use storage register arithmetic (described on page 29) in registers R1, R2, and R3 to calculate the column sums. Since these registers are cleared when fCLEAR² is pressed, we'll press those keys before beginning the manual calculation -- and also later, before running the program -- to ensure that the column sums are "initialized" to zero. (Pressing fCLEARH would clear registers R1 through R3, but would also clear R0, which will contain the tax rate. ) File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 117 of 275 Dimension: 14. 8 cm x 21 cm 118 Section 8: Programming Basics Pressing the gu keys is not necessary when we do the calculations manually, since in Run mode the result of every intermediate calculation is displayed automatically; but we'll include gu instructions in the program so that the intermediate results AMOUNT and TAX are automatically displayed when the program is executed. Keystrokes (RPN mode) 6. 75?0 fCLEAR² 13 \ Display 6. 75 0. 00 13. Separates quantity of item from cost of item to be keyed in next. Keys in cost of item. 68. 5 68. 5 File name: hp 12c pt_user's guide_English_HDPMF123E27 Printed Date: 2005/8/1 Page: 118 of 275 Dimension: 14. 8 cm x 21 cm Section 8: Programming Basics 119 Keystrokes (RPN mode) § ?+1 :0 b ?+2 + ?+3 Display 890. 50 890. 50 6. 75 60. 11 60. 11 950. 61 950. 61 AMOUNT. Adds AMOUNT to sum of AMOUNT entries in register R1. Adds TAX to sum of TAX entries in register R2. [. . . ] Stops execution if program is running (page 106). Executed as a recorded program instruction: t Run/Stop. Followed by a three-digit number, causes calculator to branch to the specified line number next, and resumes program execution from there (page 125). Stops program execution for about 1 second and displays contents of X-register, then resumes program execution (page 117). [. . . ]