Strg + Shift + U nnnn ENTER allows you to enter almost any Unicode character on Chome OS devices. But you have to know the hex-value of the character you want. That's why I have added a list of character codes I have found to be useful:
× 00d7 Times / Multiplication
| 007c Vertical Line
¦ 00a6 Broken Bar
00a0 No-Break Space ( )
2009 Thin Space
200a Hair Space
202F Narrow no-Break Space (&8239;)
« 00ab Left-Pointing Double Angle Quotation Mark
» 00bb Right-Pointing Double Angle Quotation Mark
‹ 2039 Single Left-Pointing Double Angle Quotation Mark
› 203a Single Right-Pointing Double Angle Quotation Mark
µ 00b5 Micro Sign
· 00b7 Middle Dot
‐ 2010 Hyphen
‑ 2011 Non-Breaking Hyphen
‒ 2012 Figure Dash ‒
﹣ fe63 Small Hyphen-Minus ﹣
− 2212 Minus Sign / Figure Dash −
– 2013 en Dash –
— 2014 em Dash —
― 2015 Horizontal Bar ―
• 2022 Bullet
◦ 25e6 White Bullet
™ 2122 TRADE MARK SIGN
← 2190 Leftwards Arrow
→ 2192 Rightwards Arrow
↑ 2191 UPwards Arrow
↓ 2193 DOWNwards Arrow
⇐ 21D0 Leftwards Double Arrow
⇒ 21D2 Rightwards Double Arrow
⇔ 21D4 Left Right Double Arrow
⊕ 2295 Circled Plus
⊖ 2296 Circled Minus
… 2026 Horizontal Ellipsis
⋮ 22EE Vertical Ellipsis
∕ 2215 Division Slash (Kerning fits Superscript and Subscript digits)
★ 2605 BLACK STAR
✓ 2713 CHECK MARK
✔ 2714 HEAVY CHECK MARK
✗ 2717 BALLOT
✘ 2718 HEAVY BALLOT
⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ 2070-2079 SUPERSCRIPT DIGITS
₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ 2080-2089 SUBSCRIPT DIGITS
½ 00BD VULGAR FRACTION ONE HALF
⅓ 2153 VULGAR FRACTION ONE THIRD
¼ 00BC VULGAR FRACTION ONE QUARTER
⅛ 215B VULGAR FRACTION ONE EIGHTH
⅔ 2154 VULGAR FRACTION TWO THIRDS
¾ 00BE VULGAR FRACTION THREE QUARTERS
⅜ 215C VULGAR FRACTION THREE EIGHTHS
⅝ 215D VULGAR FRACTION FIVE EIGHTHS
⅞ 215E VULGAR FRACTION SEVEN EIGHTHS
∕ 2215 Division Slash (Kerning fits Superscript and Subscript digits)
① 2460 CIRCLED DIGIT ONE
② 2461 CIRCLED DIGIT TWO
③ 2462 CIRCLED DIGIT THREE
④ 2463 CIRCLED DIGIT FOUR
⑤ 2464 CIRCLED DIGIT FIVE
⑥ 2465 CIRCLED DIGIT SIX
⑦ 2466 CIRCLED DIGIT SEVEN
⑧ 2467 CIRCLED DIGIT EIGHT
⑨ 2468 CIRCLED DIGIT NINE