[Cuis] New updates: Mathematical symbols in Smalltalk code

[Luciano Notarfrancesco]

Wow, excellent!!!! Can't wait to use math symbols it in my code!!!

I can already start using these symbols in my printOns for direct products
and sums of algebraic structures, for example, and for the complex numbers,
rational numbers, integers, etc, and when we have subscripts and
superscripts polynomials will look great too.

Using some of the symbols as binary operators will be nice too,  I guess
we'll figure out which ones are best suited for binary selector use, and if
we're missing any. In particular, I think I didn't see the "belongs" symbol
(kind of epsilon-looking), which I wanted to implement in Object as '^
aCollection includes: self'.
Haha, recently I've been looking at APL ;)

I've been thinking how to input them, tho. There isn't any easy way to type
these special symbols, right? I was thinking on something like CTRL-\
followed by the name of the symbol and ENTER or SPACE, where the names are
simple and preferably matching TeX, for example \oplus \otimes \bullet
\circ \div..

I'm going to update right now, awesome, thanks again!
Luciano

On Thu, Dec 3, 2015 at 1:51 PM, Juan Vuletich <juan at jvuletich.org> wrote:

> Hi Folks,
>
> I've just pushed to GitHub quite several updates. Besides some fixes and
> enhancement to Morphic display updates, etc, the biggest news is a set of
> 32 mathematical symbols, as requested by Luciano. They can also be used as
> binary selectors, (although such code might have portability issues).
>
> Clipboard copy & paste with Unicode apps work ok. For example this:
> '←→↑↓
> !"#$%&''()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
> ∀∂∃∄∅∞ℂℍℕℙℚℝℤℵ⨀⨁⨂∑∫⨕≠≡≢≣≤≥≦≧≨≩∘∙
> ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
> is the result of evaluating
> String streamContents: [ :strm | 28 to: 255 do: [ :i | strm nextPut:
> (Character value: i) ]]
> and doing a simple copy / paste.
>
> I also added some convenience methods, like 'Character forAll', 'Character
> directSum' or 'Character rationalNumbers'.
>
> When updating existing images you will be asked for recreating DejaVu
> StrikeFonts. For this to work, you need to unzip
> AdditionalFontData/DejaVuSans.zip in that folder. If you are using
> DejaVuSansMono, you need to recreate the fonts after the update.
>
> A nice detail, suggested by Leandro Caniglia is that you can do
> 'StrikeFont useRightArrow' and now the assignment is shown as   → . Play
> with it. It gives a new perspective on what the code is doing!
>
> Thanks Luciano for suggesting the addition of the mathematical symbols.
> Keep tuned, next will come superscripts and subscripts.
>
> Cheers,
> Juan Vuletich
>
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>
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