HP 113394 User Guide - Page 231
One-Number Functions and the Stack, Two-Number Functions and the Stack
UPC - 808736340502
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Appendix A: RPN and the Stack 231 One-Number Functions and the Stack One-number mathematics and number-alteration functions - y, r e, B, Ñ, and T - use only the number in the displayed X-register. When the key is pressed, the function is performed upon the number in the X-register, and the answer is then placed into the X-register. The stack does not lift, so the number formerly in the X-register does not get copied into the Y-register; but this number is copied into the LAST X register. The numbers in the Y-, Z-, and T-registers are not affected when a one number function is performed. Two-Number Functions and the Stack Two-number functions z, q, b, à, and Z - use the numbers in both the X- and the Y-registers. Mathematics Functions To perform an arithmetic operation, the numbers are positioned in the X- and Y-registers just as you would write them vertically on paper: the number you would write on top goes in the Y-register, and the number you would write on the bottom goes in the X-register. For example, to do each of the four arithmetic calculations shown below, you would put the 8 in the Y-register (using \ and then key the 2 into the displayed X-register.) File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 231 of 275 Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm