CODEWITHSUNDEEP
unicodefonts
Lance Pollard
Lance Pollard

Reputation: 79420

Large product ∏ symbol in unicode

I am looking for large symbols in unicode like these:

∏ ∐ ∑ ∫
⨀ ⨁ ⨂
⊕ ⊖ ⊗ ⊘ ⊙


⎲
⎳ 

 ⌠
 ⌡

The only one I found is by combining two unicode symbols ⎲and ⎳. Not sure why that exists, but not a large product symbol. That's all I am really looking for (∏ over multiple lines like the sigma). If any of the other ones exist over 2 lines that would be great to know as well. Perhaps there is some way to manually make the large ∏ symbol out of smaller primitives.

Upvotes: 0

Views: 404

Answers (1)

daxim
daxim

Reputation: 39158

⎲and ⎳. Not sure why that exists

When a collection of existing glyphs is added to Unicode, it is desirable to make encoding between character sets round-trip safe. So glyphs that are duplicates or variants of each other are kept anyway.

As of Unicode 10, these are the greek letter pi (and its compat decompositions) available: ∏Ππϖᴨℼℿ There are no top and bottom halves like for integral and summation.

You should not attempt to build a glyph piecewise from other glyphs shifted into position. (You said "primitives", but Unicode does not work that way.) The result is not accessible and somewhat likely to break in rendering on systems other than yours.

The correct solution is to use the ∏ glyph and simply scale up its font size. Look into MathML if you are using only ad-hoc notation so far.

Upvotes: 1

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