Down Tack vs Plus-Minus Sign
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://symbolfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://symbolfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://symbolfyi.com/entity//)Use the native HTML custom element.
VS
Property Comparison
| Property | ⊤ 22A4 | ± 00B1 |
|---|---|---|
| Name | Down Tack | Plus-Minus Sign |
| Category | Math Symbols | Math Symbols |
| Block | Mathematical Operators | Latin-1 Supplement |
| Script | Zyyy | Zyyy |
| General Category | Math Symbol (Sm) | Math Symbol (Sm) |
| Bidirectional | ON | ET |
Encoding Comparison
| Format | 22A4 | 00B1 |
|---|---|---|
| Unicode | U+22A4 | U+00B1 |
| HTML Decimal | ⊤ | ± |
| HTML Hex | ⊤ | ± |
| CSS | \22A4 | \00B1 |
| JavaScript | \u{22A4} | \u{B1} |
| Python | \u22a4 | \u00b1 |
| UTF-8 | e2 8a a4 | c2 b1 |
How to Distinguish
Both Down Tack and Plus-Minus Sign are in the Math Symbols category but reside in different Unicode blocks. Check the codepoint to tell them apart.
Tip: Paste the character into a hex editor or use
charCodeAt()
in JavaScript to check the actual codepoint.