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A solid angle of one steradian subtends a cone aperture of approximately 1.144 radians or 65.54 degrees. In the SI, solid angle is considered to be a dimensionless quantity, the ratio of the area projected onto a surrounding sphere and the square of the sphere's radius. This is the number of square radians in the solid angle.
Left-pointing double angle quotation mark: 0107 U+00AC ¬ 172 0302 0254 ¬ Not sign: 0108 U+00AD 173 0302 0255 ­ Soft hyphen: 0109 U+00AE ® 174 0302 0256 ® Registered trademark symbol: 0110 U+00AF ¯ 175 0302 0257 ¯ Macron: 0111 U+00B0 ° 176 0302 0260 ° Degree sign: 0112 U+00B1 ± 177 0302 0261 ± Plus–minus sign ...
Among the fonts in widespread use, [6] [7] full implementation is provided by Segoe UI Symbol and significant partial implementation of this range is provided by Arial Unicode MS and Lucida Sans Unicode, which include coverage for 83% (80 out of 96) and 82% (79 out of 96) of the symbols, respectively.
greek beta symbol u+03d1: ϑ: greek theta symbol u+03d2: ϒ: greek upsilon with hook symbol u+03d5: ϕ: greek phi symbol u+03f0: ϰ: greek kappa symbol u+03f1: ϱ: greek rho symbol u+03f4: ϴ: greek capital theta symbol u+03f5: ϵ: greek lunate epsilon symbol u+03f6 ϶ greek reversed lunate epsilon symbol
Trademark symbol ※ Reference mark: Asterisk, Dagger: Footnote ¤ Scarab (non-Unicode name) ('Scarab' is an informal name for the generic currency sign) § Section sign: section symbol, section mark, double-s, 'silcrow' Pilcrow; Semicolon: Colon ℠ Service mark symbol: Trademark symbol / Slash (non-Unicode name) Division sign, Forward Slash ...
RIGHT ANGLE SUBSTITUTION MARKER U+2E00: Po, other Common ⸁ RIGHT ANGLE DOTTED SUBSTITUTION MARKER U+2E01: Po, other Common ⸆ RAISED INTERPOLATION MARKER U+2E06: Po, other Common ⸇ RAISED DOTTED INTERPOLATION MARKER U+2E07: Po, other Common ⸈ DOTTED TRANSPOSITION MARKER U+2E08: Po, other Common ⸋ RAISED SQUARE U+2E0B: Po, other Common ⸎
Use this template to generate a pair of left (open) and right (close) angle brackets (also called chevrons) that will display correctly, even on operating systems and browsers that normally cannot display these characters when they are used in text. The template includes a 'nowrap' instruction, to prevent the brackets from separating from the ...
Just as degrees are used to measure parts of a circle, square degrees are used to measure parts of a sphere. Analogous to one degree being equal to π / 180 radians, a square degree is equal to ( π / 180 ) 2 steradians (sr), or about 1 / 3283 sr or about 3.046 × 10 −4 sr .