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How to plot a (simple) equation (and choose interval)?
Rank: Newbie
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Joined: 12/07/2017(UTC) Posts: 3
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Sorry for this newbie question.
Assume I entered a super simple equation like:
y=2*x
Now I want to plot this graph/function in interval [-10,10]
How can I do this?
When I right-click on the equation I expected a context menu entry like "plot". But there is no such context menu.
How else can I achieve this?
Peter
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Joined: 15/04/2012(UTC) Posts: 1,986 Was thanked: 1124 time(s) in 721 post(s)
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I should add a section on plotting in tutorial. Insert> Plot> 2D The axes control is via mouse wheel scrolling (try shift and ctrl keys) and panning |
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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1. Shift+@ to get the plot canvas 2. enter the plot argument 3. Shift+Wheel mouse [shrink/expand X directions] 4. Ctrl+wheel mouse [shrink/expand Y directions] 5. Mouse left down to slide in either directions 6. once the initial default plot is done: ... click on plot, mouse wheel to zoom ± both directions 2D Plot Range.sm (9kb) downloaded 665 time(s). 2D Plot Range.sm (9kb) downloaded 224 time(s). 2D Plot Range CONSTRAIN.sm (13kb) downloaded 274 time(s). 2D Plot Range CONSTRAIN demo.sm (25kb) downloaded 180 time(s).
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Rank: Newbie
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Joined: 12/07/2017(UTC) Posts: 3
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Originally Posted by: mkraska
Insert> Plot> 2D
Ok, thank you. However I would like to have this function available as context menu of an entered function the paper. Could this be added in the next version?
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Originally Posted by: PeterS However I would like to have this function available as context menu Can you explain/exemplify ... Do you mean: click on the plot for a drop down options menu ?
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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... there is a missing detail from all examples and tutorials. The Smath 2D default plot is on the X/Y ranges ± 10. By default as well, it plots on the canvas pixel i.e: 96 ppi [Pixel per inch], thus the extremely fine trace, much finer than Mathcad that plots on ½ pica [6 ppi]. If you want to set intervals otherwise: construct 2D discrete.
Jean
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Egyptians had it their own ways [you know that] For long time before the Egyptians, it is believed the Mesopotamians had it much closer from "continued fractions". "Pi" was approximated by various long empirical approximations [Legendre ...] "Pi" was finally proved by Schwab [1813] => isoperimetres method. Simon Plouffe [UQAM Montréal] method is pretty new, striking of simplicity. The question is: can we devise some infinite numerical random suite to approximate 'Pi' ... answer is NO ! Increase 'N' not to avail. Jean Random Monte Carlo Pi.sm (25kb) downloaded 146 time(s).
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