Hp 49g+ User Manual download pdf (Page 737)

100

101

Page 22-25

Data set 1

Data set 2

x y x y

0.4 6.3 0.7 4.8

1.0 4.9 1.0 3.0

2.0 4.3 1.5 2.0

3.4 3.0 2.2 0.9

4.0 1.2 3.5 0.4

5.8 2.0 4.5 1.0

7.2 3.8 5.0 2.0

7.8 5.3 6.0 2.5

9.0 7.2 7.1 2.0

8.0 0.7

9.0 0.0

10.0 1.5

10.5 3.4

11.0 5.0

Note: The program FRAME, as originally programmed (see diskette or CD

ROM), does not maintain the proper scaling of the graph. If you want to

maintain proper scaling, replace FRAME with the following program:

« STOΣ MINΣ MAXΣ 2 COL DUP COL DROP – AXL ABS AXL 20

/ DUP NEG SWAP 2 COL + ROW DROP SWAP  yR xR « 131

DUP RB SWAP yR OBJ DROP – xR OBJ DROP - / * FLOOR

RB PDIM yR OBJ DROP YRNG xR OBJ DROP XRNG ERASE » »

This program keeps the width of the PICT variable at 131 pixels – the

minimum pixel size for the horizontal axis – and adjusts the number of pixels

in the vertical axes so that a 1:1 scale is maintained between the vertical and

horizontal axes.

Pixel coordinates

The figure below shows the graphic coordinates for the typical (minimum)

screen of 131×64 pixels. Pixels coordinates are measured from the top left

corner of the screen {# 0h # 0h}, which corresponds to user-defined

coordinates (x

min

, y

max

). The maximum coordinates in terms of pixels

1 2 ... 732 733 734 735 736 737 738 739 740 741 742 ... 861 862

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Hp 49g+ User Manual Page 737

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