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| == Where to get Sliderule == | | == Where to get Sliderule == |
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− | [http://activities.sugarlabs.org/en-US/sugar/addon/4222 Activity] | [http://git.sugarlabs.org/projects/slideruler/repos/mainline Source] | + | [http://activities.sugarlabs.org/en-US/sugar/addon/4222 Activity] | [http://github.com/sugarlabs/slideruler Source] |
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| == About Sliderule == | | == About Sliderule == |
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| The Custom Slide Toolbar is used to make a custom slide. From left to right: | | The Custom Slide Toolbar is used to make a custom slide. From left to right: |
| * position function of x used to calculate the horizontal position of each mark along the slide or stator (the range of this function should be 0 to 1) | | * position function of x used to calculate the horizontal position of each mark along the slide or stator (the range of this function should be 0 to 1) |
| + | * result function of x used to read a value from the slide or stator at the cursor or reticule (usually the inverse of the position function) |
| * label function of x used to calculate a label for each mark (often identity) | | * label function of x used to calculate a label for each mark (often identity) |
− | * result function of x used to read a value from the slide or stator (usually the inverse of the position function)
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− | * results label function of x to calculate a label for the results display
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| * the minimum value of x used in the functions domains | | * the minimum value of x used in the functions domains |
| * the maximum value of x used in the functions domains | | * the maximum value of x used in the functions domains |
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| In the values shown in the illustration of the Custom Toolbar are used to generate a C (log) slide: | | In the values shown in the illustration of the Custom Toolbar are used to generate a C (log) slide: |
| :the position is determined by ''f''(''x'') = ''log''(''x'', 10) | | :the position is determined by ''f''(''x'') = ''log''(''x'', 10) |
| + | :the result (the inverse of ''f''(''x'')) is ''f<sup>-1</sup>''(''x'') = ''pow''(10, ''x'') |
| :the label is ''g''(''x'') = ''x'' | | :the label is ''g''(''x'') = ''x'' |
− | :the result (the inverse of ''f''(''x'')) is ''f<sup>-1</sup>''(''x'') = ''pow''(10, ''x'')
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− | :the result label is ''h''(''x'') = ''x''
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| :the domain is from 1 to 10 | | :the domain is from 1 to 10 |
− | :the step size is 1/4. | + | :the step size is 1. |
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| === The keyboard shortcuts === | | === The keyboard shortcuts === |
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| :t: tan scale | | :t: tan scale |
| :Home: move all scales to "home" position | | :Home: move all scales to "home" position |
| + | :r: move reticle to home position |
| :left arrow: jog slide left | | :left arrow: jog slide left |
| :right arrow: jog slide right | | :right arrow: jog slide right |
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| === Square === | | === Square === |
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− | You use the A slide and D stator to square number. (A is a log-squared scale.) Simply position the reticule of number you want to square on the D stator and read the result off of the A slide. (Remember to properly estimate the proper decimal point for your result.) | + | You use the A slide and D stator to square number. (A is a log-squared scale.) Simply position the reticule of number you want to square on the D stator and read the result off of the A slide. Remember to properly estimate the proper decimal point for your result. '''Note''': the slide and stator must be aligned in order to calculate the square of a number. |
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| ''e''<sup>2</sup> = 7.4 | | ''e''<sup>2</sup> = 7.4 |
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| == A tutorial == | | == A tutorial == |
− | [[File:Slideruletute.pdf]] 355 kB | + | [[File:Slideruletute.pdf]] 355 kB chapter 1 |
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− | [[File:Slideruletute.odt]] 429 kB (may not display figures in Write) | + | [[File:Slideruletute.odt]] 429 kB chapter 1 (may not display diagrams in Write) |
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| + | [[File:Slideruletute-ch2.pdf]] 325 kB chapter 2 |
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| + | [[File:Slideruletute-ch2.odt]] 287 kB chapter 2, the custom sliderule (may not display diagrams in Writes) |
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| == Just for fun == | | == Just for fun == |
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| You can [https://bugs.sugarlabs.org/query?status=accepted&status=assigned&status=new&status=reopened&component=Sliderule view the open tickets here]. | | You can [https://bugs.sugarlabs.org/query?status=accepted&status=assigned&status=new&status=reopened&component=Sliderule view the open tickets here]. |
| + | |
| + | [[Category:Activities]] |