Code point
U+29FA
Glyph appearance depends on your fonts.
U+29FA
SmU+29FA DOUBLE PLUS is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+29FA
10746
⧺
⧺
E2 A7 BA
29FA
000029FA
%E2%A7%BA
\u29FA
\u29FA
\u29FA
\29FA