User manual HP 48GX

[. . . ] Reproduction, adaptation, or translation of this manual is prohibited without prior written permission of HewlettPackard Company, except as allowed under the copyright laws. Hewlett-Packard Company 4995 Murphy Canyon Rd, Suite 301 San Diego, CA 92123 Acknowledgements Hewlett-Packard would like to thank the following for their contribution: Gene Wright, Tony Hutchins, Wlodek Mier-Jedrzejowicz, Jordi Hidalgo, Ted Kerber, Joe Horn, Richard Nelson, Bruce Horrocks and Jake Schwartz. Printing History Edition 1 September 2005 Edition 1. 1 March 2006 Contents Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RPL Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] !LIST ELEM POS ( is the left-shift of the Nkey). @& N POS Input/Output: Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1 "string" "substring" obj n n See also: { list } CHR, NUM, REPL, SIZE, SUB POTENTIAL CAS: Find the potential field function describing a field whose vector gradient is input. POWEXPAND CAS: Rewrite an expression raised to a power as a product. POWMOD CAS: Raise number or expression to given power, expresse the result modulo the current modulus. PR1 Type: Command Full Command and Function Reference 3-125 Description: Print Level 1 Command: Prints an object in multiline printer format. All objects except strings are printed with their identifying delimiters. Strings are printed without the leading and trailing " delimiters. Multiline printer format is similar to multiline display format, with the following exceptions: Strings and names that are more than 24 characters long are continued on the next printer line. The real and imaginary parts of complex numbers are printed on separate lines if they don't fit on the same line. Arrays are printed with a numbered heading for each row and with a column number before each element. For example, the 2 3 array 123 456 would be printed as follows: Array (2 3) Row 1 1] 1 2] 2 3] 3 Row 2 1] 4 2] 5 3] 6 Access: Flags: . . . Access: . . . PROMPTSTO Input/Output: Level 1/Argument 1 Level 1/Item 1 "global" See also: PROMPT, STO PROOT Type: Command Description: Polynomial Roots Command: Returns all roots of an n-degree polynomial having real or complex coefficients. For an nth-order polynomial, the argument must be a real or complex array of length n + 1 containing the coefficients listed from highest order to lowest. The result is a real or complex vector of length n containing the computed roots. PROOT interprets leading coefficients of zero in a limiting sense. As a leading coefficient approaches zero, a root of the polynomial approaches infinity: therefore, if flag 22 is clear (the default), PROOT reports an Infinite Result error if a leading coefficient is zero. If flag 22 is set, PROOT returns a root of (MAXREAL, 0) for each leading zero in an array containing real coefficients, and a root of (MAXREAL, MAXREAL) for each leading zero in an array containing complex coefficients. Access: !POLYNOMIAL LLPROOT (is the left-shift of the 1key). 3-128 Full Command and Function Reference Flags: Infinite Result Exception (-22) Input/Output: Level 1/Argument 1 Level 1/Item 1 [ array ]coefficients [ array ]roots See also: PCOEF, PEVAL PROPFRAC CAS: Split an improper fraction, a ratio of integers or expressions, into an integer part and a fraction part. PRST Type: Command Description: Print Stack Command: Prints all objects in the stack, starting with the object on the highest level. Objects are printed in multiline printer format. See the PR1 entry for a description of multiline printer format. PRST Flags: I/O Device (-33), Printing Device (-34), Double-spaced Printing (-37), Linefeed (-38). [. . . ] (key ALPHA-RS-2; MTH NXT PROB) This means that you can either press [ALPHA] [RIGHT-SHIFT] [2] or press [MTH] [NXT] [PROB] [!] to get the !+ (key 95. 1) This means that [+] is on the keyboard in row 9, column 5. The . 1 means unshifted; . 2 means left-shifted; . 3 means right-shifted; . 4 means alpha-shifted; . 5 means alpha-left-shifted; and . 6 means alpha-right-shifted. . 01 added means hold down the shift key while pressing the key, e. g. [. . . ]