The Math command is used by GetMath when extracting math from a canvas.  It packages a math expression up into a record where it can be saved alongside other information relevant to the context of the canvas application, such as the id, position, and annotation.

It can also be useful to use the Math command when constructing a canvas that will later be deployed to Maple Learn, especially when a non-default property is needed to change the behaviour and/or look of the math in the Learn canvas.

When the position option is given, the math will be located at those [x,y] pixel coordinates on the canvas.

When the annotation option is given, the math will have a text message beside it on the canvas.

When the attributes option is used, those attributes will be added to the MathML <math> tag.  Some such attributes can control the behaviour and/or display of the expression when dispatched to Maple Learn via the ShareCanvas command.   Most often these attributes are ignored by ShowCanvas.  See the examples section for some examples of properties that are recognized.

$\mathrm{with}\left(\mathrm{DocumentTools}:-\mathrm{Canvas}\right)\&colon;$

$m≔\mathrm{Math}\left(x+y\right)$

$m≔\mathrm{Record}\left(\mathrm{type}=''math''\&comma;\mathrm{mathml}=''$ x\&plus;y$''\&comma;\mathrm{math}=x+y\&comma;\mathrm{id}=36893627797188378748\&comma;\mathrm{readonly}=\mathrm{false}\&comma;\mathrm{position}=\mathrm{undefined}\&comma;\mathrm{gridpos}\&comma;\mathrm{box}=''''\&comma;\mathrm{annotation}=''''\&comma;\mathrm{dependency}=\left(\right)\&comma;\mathrm{istext}=\mathrm{false}\&comma;\mathrm{container}=''group''\right)$

$m:-\mathrm{math}$

$x+y$

$m:-\mathrm{mathml}$

$''$ x\&plus;y$''$

$\mathrm{m2}≔\mathrm{Math}\left(x\left[2\right]+y\left[2\right]\&comma;\mathrm{position}=\left[600\&comma;100\right]\right)\&colon;$

$\mathrm{ShowCanvas}\left(\mathrm{NewCanvas}\left(\left[\mathrm{m2}\right]\right)\right)$

$\mathrm{m3}≔\mathrm{Math}\left(x\left[3\right]+y\left[3\right]\&comma;\mathrm{annotation}=''Example\; 3''\right)\&colon;$

$\mathrm{ShowCanvas}\left(\mathrm{NewCanvas}\left(\left[\mathrm{m3}\right]\right)\right)$

$\mathrm{m4}≔\mathrm{Math}\left(\mathrm{`\%+`}\left(1\&comma;1\right)=\mathrm{Typesetting}:-\mathrm{mspace}\left(\right)\&comma;\mathrm{readonly}=\mathrm{true}\right)\&colon;$

$\mathrm{ShowCanvas}\left(\mathrm{NewCanvas}\left(\left[\mathrm{m4}\right]\right)\right)$

$\mathrm{m5}≔\mathrm{Math}\left(''$ \frac{}{2}$''\right)\&colon;$

$\mathrm{ShowCanvas}\left(\mathrm{NewCanvas}\left(\left[\mathrm{m5}\right]\right)\right)$

$\mathrm{cv6}≔\mathrm{NewCanvas}\left(\left[\mathrm{Group}\left(\left[\mathrm{Text}\left(''Math\; Attributes:''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\&comma;1\right)\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\&comma;1\right)\&comma;\mathrm{attributes}=\left[\mathrm{readonly}=\mathrm{true}\right]\&comma;\mathrm{annotation}=''Read-only''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\&comma;1\right)\&comma;\mathrm{attributes}=\left[\mathrm{result}=\mathrm{false}\right]\&comma;\mathrm{annotation}=''Turn\; off\; computation\; result''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\right)\&comma;\mathrm{attributes}=\left[\mathrm{plot}=\mathrm{false}\right]\&comma;\mathrm{annotation}=''Don\text{'}t\; plot''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\right)\&comma;\mathrm{attributes}=\left[''text''=''true''\right]\&comma;\mathrm{annotation}=''Text''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\right)\&comma;\mathrm{attributes}=\left[\mathrm{mathbackground}=''red''\right]\&comma;\mathrm{annotation}=''Background\; color''\right)\&comma;\mathrm{Math}\left(\mathrm{`\%+`}\left(x\&comma;1\right)\&comma;\mathrm{attributes}=\left[\mathrm{mathcolor}=''green''\right]\&comma;\mathrm{annotation}=''Font\; color''\right)\right]\right)\right]\right)\&colon;$

$\mathrm{ShareCanvas}\left(\mathrm{cv6}\right)$

$\mathrm{url}≔''https://learn.maplesoft.com/\#/?d=OULPGFDHIFNKDLJJGGMKJKNOARBJLHGRPOOKHKCQHPMFKMOTBFEHCUBUCQFNOGKSAMDOCUEFGMAJMQELFLEQEGOMETNULHFSCUGU''\&colon;$

$\mathrm{cv}≔\mathrm{GetCanvas}\left(\mathrm{url}\right)\&colon;$

$M≔\mathrm{GetMath}\left(\mathrm{cv}\right)\&colon;$

$M\left[3\right]:-\mathrm{math}$

$M\left[3\right]:-\mathrm{id}$

$M\left[3\right]:-\mathrm{annotation}$

$M\left[3\right]:-\mathrm{position}$

The DocumentTools[Canvas][Math] command was introduced in Maple 2021.

For more information on Maple 2021 changes, see Updates in Maple 2021.