## collecting all commands of a clickable document...

Asked by:

hi, is there a way to collect all commands in one place which have been used during a clickable math session of a document? in fact this would help in creating automated tasks.

## Clickable Math doesn't always return a result ??...

Asked by:

It puzzles me that some of the choices for Clickable Math don't return a result. The image below shows four choices for clickable math. I would like it to "factor" exactly as shown in the upper left choice, but nothing happens after clicking the choice. (No matter how many times I try.) The choices "2D Plot" and "Isolate" return results ("Complete the square", in this case, also does not work).

My guess is that I'm asking it to operate on only the denominator of the rhs of the equation, but then why is the choice displayed at all. I've noticed this for some time in certain cases (like since version 17 was release).

Is there a way to make the choice return a result ? In this case, I don't find an equivalent command (factor, the denominator) using a right click. (In this case, I'll use another command "covert" "parfrac" . . .)

I want Clickable Math to make it easy.

Thanks. Cheers !

## Units conversion problem...

Asked by:

This is an addition to the following post:

http://www.mapleprimes.com/questions/141795-Unit-Conversion-Problem

But I use the clickable facilities of Maple.  Here is the problem:

>32[[degC]];

32[[degC]]
right-click -> Units -> Replace units -> degF

288
--- [[degF]]
5

>evalf[5]( (2) );
57.600[[degF]]

but if I do that:

>convert(32, 'temperature', 'degC', 'degF');

448
---
5

>evalf[5]( (4) );
89.600

Why the conversion is bad when you try to do it by the clickable way????????????

```--------------------------------------
Mario Lemelin```
```Maple 18 Ubuntu 13.10 - 64 bitsMaple 18 Win 7 -  64 bits
messagerie : mario.lemelin@cgocable.ca
téléphone :  (819) 376-0987```

## How do I launch the clickable math interface in ma...

Asked by:
New user. How do I launch the clickable math interface as in the demo video in maple 17 student? I also need help with entering/ solving simultaneous equations step by step.

## subexpressionmenu and Clickable Math 3.0

by: Maple 16

Apart from the online description of this new Maple 16 feature here, there is also the help-page for subexpressionmenu.

I don't know of a complete listing of its current functionality, but the key thing is that it acts in context. By that I mean that the choice of displayed actions depends on the kind of subexpression that one has selected with the mouse cursor.

Apart from arithmetic operations, rearrangements and some normalizations of equations, and plot previews, one of the more interesting pieces of functionality is the various trigonometric substitutions. Some of the formulaic trig substitutions provide functionality that has otherwise been previously (I think) needed in Maple.

In Maple 16 it is now much easier to do some trigonometric identity solving, step by step.

Here is an example executed in a worksheet. (This was produced by merely selecting subexpressions of the output at each step, and waiting briefly for the new Smart Popup menus to appear automatically. I did not right-click and use the traditional context-sensitive menus. I did not have to type in any of the red input lines below: the GUI inserts them as a convenience, for reproduction. This is not a screen-grab movie, however, and doesn't visbily show my mouse cursor selections. See the 2D Math version further below for an alternate look and feel.)

 > expr:=sin(3*a)=3*sin(a)-4*sin(a)^3:
 > expr;

 > # full angle reduction identity: sin(3*a)=-sin(a)^3+3*cos(a)^2*sin(a) -sin(a)^3+3*cos(a)^2*sin(a) = 3*sin(a)-4*sin(a)^3;

 > # subtract -sin(a)^3 from both sides (-sin(a)^3+3*cos(a)^2*sin(a) = 3*sin(a)-4*sin(a)^3) -~ (-sin(a)^3);

 > # divide both sides by 3 (3*cos(a)^2*sin(a) = 3*sin(a)-3*sin(a)^3) /~ (3);

 > # divide both sides by sin(a) (cos(a)^2*sin(a) = sin(a)-sin(a)^3) /~ (sin(a));

 > # normal 1/sin(a)*(sin(a)-sin(a)^3) cos(a)^2 = normal(1/sin(a)*(sin(a)-sin(a)^3));

 > # Pythagoras identity: cos(a)^2=1-sin(a)^2 1-sin(a)^2 = 1-sin(a)^2;

 >

The very first step above could also be done as a pair of simpler sin(x+y) reductions involving sin(2*a+a) and sin(a+a), depending on what one allows onself to use. There's room for improvement to this whole approach, but it looks like progress.

Download trigident1.mw

In a Document, rather than using 1D Maple notation in a Worksheet as above, the actions get documented in the more usual way, similar to context-menus, with annotated arrows between lines.

Download trigident2.mw

I am not quite sure what is the best way to try and get some of the trig handling in a more programmatic way, ie. by using the "names" of the various transformational formulas. But some experts here may discover such by examination of the code. Ie,

```eval(SubexpressionMenu);

showstat(SubexpressionMenu::TrigHandler);
```

The above can leads to noticing the following (undocumented) difference, for example,

```> trigsubs(sin(2*a));

1       2 tan(a)
[-sin(-2 a), 2 sin(a) cos(a), --------, -----------,
csc(2 a)            2
1 + tan(a)

-1/2 I (exp(2 I a) - exp(-2 I a)), 2 sin(a) cos(a), 2 sin(a) cos(a)]

> trigsubs(sin(2*a),annotate=true);

["odd function" = -sin(-2 a), "double angle" = 2 sin(a) cos(a),

1                       2 tan(a)
"reciprocal function" = --------, "Weierstrass" = -----------,
csc(2 a)                            2
1 + tan(a)

"Euler" = -1/2 I (exp(2 I a) - exp(-2 I a)),

"angle reduction" = 2 sin(a) cos(a),

"full angle reduction" = 2 sin(a) cos(a)]
```

And that could lead one to try constructions such as,

```> map(rhs,indets(trigsubs(sin(a),annotate=true),
>                identical("double angle")=anything));

{2 sin(a/2) cos(a/2)}
```

Since the `annotate=true` option for `trigsubs` is not documented in Maple 16 there is more potential here for useful functionality.

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