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- >1.Graph of the linear function
- y=2x-1
- MYSZEK 2xyDEMO
- EXAMPLE
- v500
- ;introduction
- e
- t100
- p30
- t0
-
- zf
- t1
- p7
- t0
- zfm
- t12
- fT14
- ;p7
- t0
- t2
- p6
- t0
- ;enter the formula
- cym
- k=m
- c2m
- cxm
- k-m
- c1m
- ke
- t3
- p2
- t0
- ;press enter
- kem
- t4
- p6
- t0
- ;1st point
- k-m
- c3m
- t13
- p3
- t0
- sdm
- k-m
- c7m
- spm
- sgm
- ;2nd point
- c0m
- sdm
- k-m
- c1m
- ;3rd point
- ki
- t5
- p5
- t0
- t6
- p6
- t0
- kim
- sgm
- k/m
- sgm
- c1m
- sdm
- c2m
- sdm
- c0m
- ;4th point
- kim
- sgm
- c2m
- sdm
- c3m
- ke
- t7
- p5
- t0
- kem
- ;marking points
- t8
- fT18
- ;p9
- t0
- ;1st point
- ft
- m
- m
- fx-3
- fy-7
- t9
- p7
- t0
- m
- m
- ;2nd point
- t10
- fT16
- t0
- ft
- m
- m
- fx0
- fy-1
- m
- m
- ;3rd point
- ft
- m
- m
- fx0.5
- fy0
- m
- m
- ;4th point
- ft
- m
- m
- fx2
- fy3
- m
- m
- t11
- p4
- t0
- p3
- ;next example
- ze
-
- t101
- p12
- t0
- zxm
- zem
- q
- BLURB
- 1`#We are going to draw a graph
- 1`#of the linear function:
- 1`#@y=2x-1@
- 1`#We click the icon to open the
- 1`#&graphs of functions& window
- 12`The information about what to do now is
- 12`displayed below the title of the window
- 2`Following this hint, we write the formula for the value of the function.
- 3`When finished, we press &ENTER&
- 4`Now we should write the co-ordinates
- 4`of some points on the line.
- 13`We use the &arrow keys& to move from one cell to another
- 5`Two points are sufficient to define the line,
- 5`but we can write more...
- 6`We press the &Insert& button
- 6`to add a new column of the table.
- 6`Notice the position of the mouse.
- 7`Having typed in all the points,
- 7`we press &ENTER&.
- 8`Now, following the hint
- 8`below the title of the window,
- 8`we should select a point.
- 8`We click on a column of the
- 8`table to do that...
- 9`and mark the point in the co-ordinate diagram.
- 9`We just place the mouse pointer at the point and click.
- 10`#In the same way we mark all of the points.
- 10`#The hints below the title of the window
- 10`#remind us what to do.
- 11`When the points are marked, the graph appears automatically.
- 100`#We show how to use 2xy to draw graphs of functions.
- 100``#"The presentation proceeds automatically."`
- 101`#In a moment the &Examples& window will appear.
- 101`You can watch the same presentation again,
- 101`#or load the next example,
- 101`#or close the window and solve your own problem.
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