HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 165
Function Names in Programs, Entering a Labeled Program.
UPC - 082916001456
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Function Names in Programs The name of a function that is used in a program line is not necessarily the same as the function's name on its key, in its menu, or in an equation. The name that is used in a program is usually a fuller abbreviation than that which can fit on a key or in a menu. This fuller name appears briefly in the display whenever you execute a function - as long as you hold down the key, the name is displayed. Example: Entering a Labeled Program. The following keystrokes delete the previous program for the area of a circle and enter a new one that includes a label and a return instruction. If you make a mistake during entry, press b to delete the current program line, then reenter the line correctly. Keys: (In RPN mode) Display: Description: {e { c {} {&} { A ! |N z | { Y {} | Activates Program-entry mode (PRGM on). Clears all of program memory. Labels this program routine A (for "area"). Enters the three program lines. Ends the program. Displays label A and the length of the program in bytes. Checksum and length of program. Cancels program entry (PRGM annunciator off). A different checksum means the program was not entered exactly as given here. Simple Programming 12-7