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Maxima Window

Plugin updated. Changes/Features:: - Custom Control Window (Insert> Maxima control window) - Settings window for specification of Maxima path - Debugger Window for step by step Maxima calls - Log window for more convenient session inspection - MaximaTakeover() for fine tuning of function takeover - Maxima path can be documented in the sheet - Back-translation of at() - Access to draw package (works only with Maxima 5.31.1-1 or older)

Insert> Maxima control window

opens the Maxima window:

a log viewer

a translation debugger

a settings window

Under settngs, you can decide if this window pops up at startup

Settings window

settings MaximaControl Settings window was opened

Here you can set the search path to Maxima. Preset is the full path name of maxima.bat.

restart MaximaControl Restart complete.

Log viewer

In the log viewer, you can copy or save the log content.

Maxima window> Log

Log type: Maxima communication: the same as MaximaLog("all"); complete Maxima session without translation details

Full conversion: the same as MaximaLog(#), all translation details included.

Write:

Write log contents to "maxima.log" in the current directory.

Debugger Window

There is now a Debugger window available, where you can investigate the translation process of expressions.

Maxima window> Log

a a a + 21 sys debug Maxima Debugger was used

You can send an expression to the debugger by appending "debug" as second argument to Maxima(). The debugger allows you to manually change each of the translation results before proceeding to the next step of the translation.

expr debug Maxima

sends expr to the debug input buffer

The button [Update SMath input string] shifts the input to the edit window.

The button [Continue SMath calculation] sends the translation result back to the invocating command. Make sure that there is only one active Maxima(..;debug).

Documentation of Maxima version in use

Use MaximaControl() with any otherwise invalid argument

# MaximaControl C:\Program Files\Maxima-5.31.1-1\bin\maxima.bat

More flexible function takeover/surrender

Maxima can handle the functions int(), diff(), lim(), det() and sum()

Preset is to leave them to native SMath.

The settings are not controlled by the Settings window, because this would make them invisible in the sheet and you would not have local control.

x sech x diff x sech x tanh * -

x 2^x / x ∞ lim x x ∞ lim

j j 1 n sum #

x sin x int x sin x int

a 12 b 322 mat * det a 2^32 b * - (*

There are now several options to control takeover and surrender:

all MaximaTakeover The functions int(), diff(), det(), lim() and sum() now use Maxima.

x sech x diff x sech x tanh * -

x 2^x / x ∞ lim ∞

j j 1 n sum n 1 n + (* 2 /

x sin x int x cos -

a 12 b 322 mat * det a 2^32 b * - (*

det() MaximaTakeover The function det() now use Maxima.

x sech x diff x sech x diff

x 2^x / x ∞ lim x x ∞ lim

j j 1 n sum #

x sin x int x sin x int

a 12 b 322 mat * det a 2^32 b * - (*

det() diff() MaximaTakeover The functions det() and diff() now use Maxima.

x sech x diff x sech x tanh * -

x 2^x / x ∞ lim x x ∞ lim

j j 1 n sum #

x sin x int x sin x int

a 12 b 322 mat * det a 2^32 b * - (*

Killing of broken Maxima processes

Broken processes (maxima.exe) should be automatically killed in most cases.

Rückübersetzung von at()

Back-translation of at()

t delta t 2 diff t s laplace Maxima t delta t 1 diff t 0 ≡ at - s 2^+ 0 delta s * -

Access to draw package

Prerequisites: Maxima 5.31.1-1 (most recent version where draw can be accessed from the Maxima plugin)

Up to date ImageRegion plugin (with svg support)

Currently, the settings and commands need to be individual arguments to the draw commands. We shall find a way to put them into containers in order to allow for more complex plots.

Also, the generated svgs are not scalable. Any hints on the required draw options for this are welcome.

msg draw load Maxima :

pl palette black gray60 red orange yellow white 61 sys ≡ (:

custom palette, play with the colors.

term terminal svg ≡ (:

image file format

bg background.color #FEFEFE ≡ (:

nearly white background in order to not get transparent in the image region

dim dimensions 50040021 sys ≡ (:

prop proportional.axes xy ≡ (:

Here, the returned list is not properly handled. Just a display problem.

term bg pl prop grid true ≡ set_draw_defaults Maxima #

name draw :

DocumentDirectory CurrentDirectory D:\Dropbox\Public\SMath\Testing\

file_name name ≡ enhanced3d true ≡ y 2^x 2^- x 2 - 2 y 2 - 2 explicit draw3d Maxima ?explicit gr3d 11 mat

draw.svg

Make sure you have the latest version of the ImageRegion plugin

You might need to re-calculate in order to see changes in the plot, as SMath does not wait for Maxima to finish writing the file.