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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/doxygen_manual.tex | 2 | ||||
| -rw-r--r-- | doc/htmlcmds.doc | 362 |
2 files changed, 265 insertions, 99 deletions
diff --git a/doc/doxygen_manual.tex b/doc/doxygen_manual.tex index 58615ed..8c4af34 100644 --- a/doc/doxygen_manual.tex +++ b/doc/doxygen_manual.tex @@ -24,7 +24,9 @@ \usepackage{color} \usepackage{ifthen} \usepackage[table]{xcolor} +\PassOptionsToPackage{warn}{textcomp} \usepackage{textcomp} +\usepackage[nointegrals]{wasysym} \usepackage{alltt} \usepackage{ifpdf} \ifpdf diff --git a/doc/htmlcmds.doc b/doc/htmlcmds.doc index 7038e99..96abe0a 100644 --- a/doc/htmlcmds.doc +++ b/doc/htmlcmds.doc @@ -109,106 +109,270 @@ of a HTML tag are passed on to the HTML output only <li><tt>\</VAR\></tt> Ends a <tt>\<VAR\></tt> section. </ul> -The special HTML character entities that are recognized by Doxygen: - +The special HTML4 character entities.<br> +The list of entities with their descriptions has been taken from <a href="http://www.w3.org/TR/html4/sgml/entities.html">Character entity references in HTML 4</a>. +( Portions © International Organization for Standardization 1986 + Permission to copy in any form is granted for use with + conforming SGML systems and applications as defined in + ISO 8879, provided this notice is included in all copies.) +<ul> +<li><tt>\ </tt>` ` no-break space = non-breaking space: +<li><tt>\¡</tt>` ` inverted exclamation mark: ¡ +<li><tt>\¢</tt>` ` cent sign: ¢ +<li><tt>\£</tt>` ` pound sign: £ +<li><tt>\¤</tt>` ` currency sign: ¤ +<li><tt>\¥</tt>` ` yen sign = yuan sign: ¥ +<li><tt>\¦</tt>` ` broken bar = broken vertical bar: ¦ +<li><tt>\§</tt>` ` section sign: § +<li><tt>\¨</tt>` ` diaeresis = spacing diaeresis: ¨ +<li><tt>\©</tt>` ` copyright sign: © +<li><tt>\ª</tt>` ` feminine ordinal indicator: ª +<li><tt>\«</tt>` ` left-pointing double angle quotation mark = left pointing guillemet: « +<li><tt>\¬</tt>` ` not sign: ¬ +<li><tt>\­</tt>` ` soft hyphen = discretionary hyphen: ­ +<li><tt>\®</tt>` ` registered sign = registered trade mark sign: ® +<li><tt>\¯</tt>` ` macron = spacing macron = overline = APL overbar: ¯ +<li><tt>\°</tt>` ` degree sign: ° +<li><tt>\±</tt>` ` plus-minus sign = plus-or-minus sign: ± +<li><tt>\²</tt>` ` superscript two = superscript digit two = squared: ² +<li><tt>\³</tt>` ` superscript three = superscript digit three = cubed: ³ +<li><tt>\´</tt>` ` acute accent = spacing acute: ´ +<li><tt>\µ</tt>` ` micro sign: µ +<li><tt>\¶</tt>` ` pilcrow sign = paragraph sign: ¶ +<li><tt>\·</tt>` ` middle dot = Georgian comma = Greek middle dot: · +<li><tt>\¸</tt>` ` cedilla = spacing cedilla: ¸ +<li><tt>\¹</tt>` ` superscript one = superscript digit one: ¹ +<li><tt>\º</tt>` ` masculine ordinal indicator: º +<li><tt>\»</tt>` ` right-pointing double angle quotation mark = right pointing guillemet: » +<li><tt>\¼</tt>` ` vulgar fraction one quarter = fraction one quarter: ¼ +<li><tt>\½</tt>` ` vulgar fraction one half = fraction one half: ½ +<li><tt>\¾</tt>` ` vulgar fraction three quarters = fraction three quarters: ¾ +<li><tt>\¿</tt>` ` inverted question mark = turned question mark: ¿ +<li><tt>\À</tt>` ` latin capital letter A with grave = latin capital letter A grave: À +<li><tt>\Á</tt>` ` latin capital letter A with acute: Á +<li><tt>\Â</tt>` ` latin capital letter A with circumflex:  +<li><tt>\Ã</tt>` ` latin capital letter A with tilde: à +<li><tt>\Ä</tt>` ` latin capital letter A with diaeresis: Ä +<li><tt>\Å</tt>` ` latin capital letter A with ring above = latin capital letter A ring: Å +<li><tt>\Æ</tt>` ` latin capital letter AE = latin capital ligature AE: Æ +<li><tt>\Ç</tt>` ` latin capital letter C with cedilla: Ç +<li><tt>\È</tt>` ` latin capital letter E with grave: È +<li><tt>\É</tt>` ` latin capital letter E with acute: É +<li><tt>\Ê</tt>` ` latin capital letter E with circumflex: Ê +<li><tt>\Ë</tt>` ` latin capital letter E with diaeresis: Ë +<li><tt>\Ì</tt>` ` latin capital letter I with grave: Ì +<li><tt>\Í</tt>` ` latin capital letter I with acute: Í +<li><tt>\Î</tt>` ` latin capital letter I with circumflex: Î +<li><tt>\Ï</tt>` ` latin capital letter I with diaeresis: Ï +<li><tt>\Ð</tt>` ` latin capital letter ETH: Ð +<li><tt>\Ñ</tt>` ` latin capital letter N with tilde: Ñ +<li><tt>\Ò</tt>` ` latin capital letter O with grave: Ò +<li><tt>\Ó</tt>` ` latin capital letter O with acute: Ó +<li><tt>\Ô</tt>` ` latin capital letter O with circumflex: Ô +<li><tt>\Õ</tt>` ` latin capital letter O with tilde: Õ +<li><tt>\Ö</tt>` ` latin capital letter O with diaeresis: Ö +<li><tt>\×</tt>` ` multiplication sign: × +<li><tt>\Ø</tt>` ` latin capital letter O with stroke = latin capital letter O slash: Ø +<li><tt>\Ù</tt>` ` latin capital letter U with grave: Ù +<li><tt>\Ú</tt>` ` latin capital letter U with acute: Ú +<li><tt>\Û</tt>` ` latin capital letter U with circumflex: Û +<li><tt>\Ü</tt>` ` latin capital letter U with diaeresis: Ü +<li><tt>\Ý</tt>` ` latin capital letter Y with acute: Ý +<li><tt>\Þ</tt>` ` latin capital letter THORN: Þ +<li><tt>\ß</tt>` ` latin small letter sharp s = ess-zed: ß +<li><tt>\à</tt>` ` latin small letter a with grave = latin small letter a grave: à +<li><tt>\á</tt>` ` latin small letter a with acute: á +<li><tt>\â</tt>` ` latin small letter a with circumflex: â +<li><tt>\ã</tt>` ` latin small letter a with tilde: ã +<li><tt>\ä</tt>` ` latin small letter a with diaeresis: ä +<li><tt>\å</tt>` ` latin small letter a with ring above = latin small letter a ring: å +<li><tt>\æ</tt>` ` latin small letter ae = latin small ligature ae: æ +<li><tt>\ç</tt>` ` latin small letter c with cedilla: ç +<li><tt>\è</tt>` ` latin small letter e with grave: è +<li><tt>\é</tt>` ` latin small letter e with acute: é +<li><tt>\ê</tt>` ` latin small letter e with circumflex: ê +<li><tt>\ë</tt>` ` latin small letter e with diaeresis: ë +<li><tt>\ì</tt>` ` latin small letter i with grave: ì +<li><tt>\í</tt>` ` latin small letter i with acute: í +<li><tt>\î</tt>` ` latin small letter i with circumflex: î +<li><tt>\ï</tt>` ` latin small letter i with diaeresis: ï +<li><tt>\ð</tt>` ` latin small letter eth: ð +<li><tt>\ñ</tt>` ` latin small letter n with tilde: ñ +<li><tt>\ò</tt>` ` latin small letter o with grave: ò +<li><tt>\ó</tt>` ` latin small letter o with acute: ó +<li><tt>\ô</tt>` ` latin small letter o with circumflex: ô +<li><tt>\õ</tt>` ` latin small letter o with tilde: õ +<li><tt>\ö</tt>` ` latin small letter o with diaeresis: ö +<li><tt>\÷</tt>` ` division sign: ÷ +<li><tt>\ø</tt>` ` latin small letter o with stroke, = latin small letter o slash: ø +<li><tt>\ù</tt>` ` latin small letter u with grave: ù +<li><tt>\ú</tt>` ` latin small letter u with acute: ú +<li><tt>\û</tt>` ` latin small letter u with circumflex: û +<li><tt>\ü</tt>` ` latin small letter u with diaeresis: ü +<li><tt>\ý</tt>` ` latin small letter y with acute: ý +<li><tt>\þ</tt>` ` latin small letter thorn: þ +<li><tt>\ÿ</tt>` ` latin small letter y with diaeresis: ÿ +<li><tt>\ƒ</tt>` ` latin small f with hook = function = florin: ƒ +<li><tt>\Α</tt>` ` greek capital letter alpha: Α +<li><tt>\Β</tt>` ` greek capital letter beta: Β +<li><tt>\Γ</tt>` ` greek capital letter gamma: Γ +<li><tt>\Δ</tt>` ` greek capital letter delta: Δ +<li><tt>\Ε</tt>` ` greek capital letter epsilon: Ε +<li><tt>\Ζ</tt>` ` greek capital letter zeta: Ζ +<li><tt>\Η</tt>` ` greek capital letter eta: Η +<li><tt>\Θ</tt>` ` greek capital letter theta: Θ +<li><tt>\Ι</tt>` ` greek capital letter iota: Ι +<li><tt>\Κ</tt>` ` greek capital letter kappa: Κ +<li><tt>\Λ</tt>` ` greek capital letter lambda: Λ +<li><tt>\Μ</tt>` ` greek capital letter mu: Μ +<li><tt>\Ν</tt>` ` greek capital letter nu: Ν +<li><tt>\Ξ</tt>` ` greek capital letter xi: Ξ +<li><tt>\Ο</tt>` ` greek capital letter omicron: Ο +<li><tt>\Π</tt>` ` greek capital letter pi: Π +<li><tt>\Ρ</tt>` ` greek capital letter rho: Ρ +<li><tt>\Σ</tt>` ` greek capital letter sigma: Σ +<li><tt>\Τ</tt>` ` greek capital letter tau: Τ +<li><tt>\Υ</tt>` ` greek capital letter upsilon: Υ +<li><tt>\Φ</tt>` ` greek capital letter phi: Φ +<li><tt>\Χ</tt>` ` greek capital letter chi: Χ +<li><tt>\Ψ</tt>` ` greek capital letter psi: Ψ +<li><tt>\Ω</tt>` ` greek capital letter omega: Ω +<li><tt>\α</tt>` ` greek small letter alpha: α +<li><tt>\β</tt>` ` greek small letter beta: β +<li><tt>\γ</tt>` ` greek small letter gamma: γ +<li><tt>\δ</tt>` ` greek small letter delta: δ +<li><tt>\ε</tt>` ` greek small letter epsilon: ε +<li><tt>\ζ</tt>` ` greek small letter zeta: ζ +<li><tt>\η</tt>` ` greek small letter eta: η +<li><tt>\θ</tt>` ` greek small letter theta: θ +<li><tt>\ι</tt>` ` greek small letter iota: ι +<li><tt>\κ</tt>` ` greek small letter kappa: κ +<li><tt>\λ</tt>` ` greek small letter lambda: λ +<li><tt>\μ</tt>` ` greek small letter mu: μ +<li><tt>\ν</tt>` ` greek small letter nu: ν +<li><tt>\ξ</tt>` ` greek small letter xi: ξ +<li><tt>\ο</tt>` ` greek small letter omicron: ο +<li><tt>\π</tt>` ` greek small letter pi: π +<li><tt>\ρ</tt>` ` greek small letter rho: ρ +<li><tt>\ς</tt>` ` greek small letter final sigma: ς +<li><tt>\σ</tt>` ` greek small letter sigma: σ +<li><tt>\τ</tt>` ` greek small letter tau: τ +<li><tt>\υ</tt>` ` greek small letter upsilon: υ +<li><tt>\φ</tt>` ` greek small letter phi: φ +<li><tt>\χ</tt>` ` greek small letter chi: χ +<li><tt>\ψ</tt>` ` greek small letter psi: ψ +<li><tt>\ω</tt>` ` greek small letter omega: ω +<li><tt>\ϑ</tt> greek small letter theta symbol: ϑ +<li><tt>\ϒ</tt>` ` greek upsilon with hook symbol: ϒ +<li><tt>\ϖ</tt>` ` greek pi symbol: ϖ +<li><tt>\•</tt>` ` bullet = black small circle: • +<li><tt>\…</tt>` ` horizontal ellipsis = three dot leader: … +<li><tt>\′</tt>` ` prime = minutes = feet: ′ +<li><tt>\″</tt>` ` double prime = seconds = inches: ″ +<li><tt>\‾</tt>` ` overline = spacing overscore: ‾ +<li><tt>\⁄</tt>` ` fraction slash: ⁄ +<li><tt>\℘</tt>` ` script capital P = power set = Weierstrass p: ℘ +<li><tt>\ℑ</tt>` ` blackletter capital I = imaginary part: ℑ +<li><tt>\ℜ</tt>` ` blackletter capital R = real part symbol: ℜ +<li><tt>\™</tt>` ` trade mark sign: ™ +<li><tt>\ℵ</tt>` ` alef symbol = first transfinite cardinal: ℵ +<li><tt>\←</tt>` ` leftwards arrow: ← +<li><tt>\↑</tt>` ` upwards arrow: ↑ +<li><tt>\→</tt>` ` rightwards arrow: → +<li><tt>\↓</tt>` ` downwards arrow: ↓ +<li><tt>\↔</tt>` ` left right arrow: ↔ +<li><tt>\↵</tt>` ` downwards arrow with corner leftwards = carriage return: ↵ +<li><tt>\⇐</tt>` ` leftwards double arrow: ⇐ +<li><tt>\⇑</tt>` ` upwards double arrow: ⇑ +<li><tt>\⇒</tt>` ` rightwards double arrow: ⇒ +<li><tt>\⇓</tt>` ` downwards double arrow: ⇓ +<li><tt>\⇔</tt>` ` left right double arrow: ⇔ +<li><tt>\∀</tt>` ` for all: ∀ +<li><tt>\∂</tt>` ` partial differential: ∂ +<li><tt>\∃</tt>` ` there exists: ∃ +<li><tt>\∅</tt>` ` empty set = null set = diameter: ∅ +<li><tt>\∇</tt>` ` nabla = backward difference: ∇ +<li><tt>\∈</tt>` ` element of: ∈ +<li><tt>\∉</tt>` ` not an element of: ∉ +<li><tt>\∋</tt>` ` contains as member: ∋ +<li><tt>\∏</tt>` ` n-ary product = product sign: ∏ +<li><tt>\∑</tt>` ` n-ary sumation: ∑ +<li><tt>\−</tt>` ` minus sign: − +<li><tt>\∗</tt>` ` asterisk operator: ∗ +<li><tt>\√</tt>` ` square root = radical sign: √ +<li><tt>\∝</tt>` ` proportional to: ∝ +<li><tt>\∞</tt>` ` infinity: ∞ +<li><tt>\∠</tt>` ` angle: ∠ +<li><tt>\∧</tt>` ` logical and = wedge: ∧ +<li><tt>\∨</tt>` ` logical or = vee: ∨ +<li><tt>\∩</tt>` ` intersection = cap: ∩ +<li><tt>\∪</tt>` ` union = cup: ∪ +<li><tt>\∫</tt>` ` integral: ∫ +<li><tt>\∴</tt>` ` therefore: ∴ +<li><tt>\∼</tt>` ` tilde operator = varies with = similar to: ∼ +<li><tt>\≅</tt>` ` approximately equal to: ≅ +<li><tt>\≈</tt>` ` almost equal to = asymptotic to: ≈ +<li><tt>\≠</tt>` ` not equal to: ≠ +<li><tt>\≡</tt>` ` identical to: ≡ +<li><tt>\≤</tt>` ` less-than or equal to: ≤ +<li><tt>\≥</tt>` ` greater-than or equal to: ≥ +<li><tt>\⊂</tt>` ` subset of: ⊂ +<li><tt>\⊃</tt>` ` superset of: ⊃ +<li><tt>\⊄</tt>` ` not a subset of: ⊄ +<li><tt>\⊆</tt>` ` subset of or equal to: ⊆ +<li><tt>\⊇</tt>` ` superset of or equal to: ⊇ +<li><tt>\⊕</tt>` ` circled plus = direct sum: ⊕ +<li><tt>\⊗</tt>` ` circled times = vector product: ⊗ +<li><tt>\⊥</tt>` ` up tack = orthogonal to = perpendicular: ⊥ +<li><tt>\⋅</tt>` ` dot operator: ⋅ +<li><tt>\⌈</tt>` ` left ceiling = apl upstile: ⌈ +<li><tt>\⌉</tt>` ` right ceiling: ⌉ +<li><tt>\⌊</tt>` ` left floor = apl downstile: ⌊ +<li><tt>\⌋</tt>` ` right floor: ⌋ +<li><tt>\⟨</tt>` ` left-pointing angle bracket = bra: ⟨ +<li><tt>\⟩</tt>` ` right-pointing angle bracket = ket: ⟩ +<li><tt>\◊</tt>` ` lozenge: ◊ +<li><tt>\♠</tt>` ` black spade suit: ♠ +<li><tt>\♣</tt>` ` black club suit = shamrock: ♣ +<li><tt>\♥</tt>` ` black heart suit = valentine: ♥ +<li><tt>\♦</tt>` ` black diamond suit: ♦ +<li><tt>\"</tt>` ` quotation mark = APL quote: " +<li><tt>\&</tt>` ` ampersand: & +<li><tt>\<</tt>` ` less-than sign: < +<li><tt>\></tt>` ` greater-than sign: > +<li><tt>\Œ</tt>` ` latin capital ligature OE: Œ +<li><tt>\œ</tt>` ` latin small ligature oe: œ +<li><tt>\Š</tt>` ` latin capital letter S with caron: Š +<li><tt>\š</tt>` ` latin small letter s with caron: š +<li><tt>\Ÿ</tt>` ` latin capital letter Y with diaeresis: Ÿ +<li><tt>\ˆ</tt>` ` modifier letter circumflex accent: ˆ +<li><tt>\˜</tt>` ` small tilde: ˜ +<li><tt>\ </tt>` ` en space:   +<li><tt>\ </tt>` ` em space:   +<li><tt>\ </tt>` ` thin space:   +<li><tt>\‌</tt>` ` zero width non-joiner: ‌ +<li><tt>\‍</tt>` ` zero width joiner: ‍ +<li><tt>\‎</tt>` ` left-to-right mark: ‎ +<li><tt>\‏</tt>` ` right-to-left mark: ‏ +<li><tt>\–</tt>` ` en dash: – +<li><tt>\—</tt>` ` em dash: — +<li><tt>\‘</tt>` ` left single quotation mark: ‘ +<li><tt>\’</tt>` ` right single quotation mark: ’ +<li><tt>\‚</tt>` ` single low-9 quotation mark: ‚ +<li><tt>\“</tt>` ` left double quotation mark: “ +<li><tt>\”</tt>` ` right double quotation mark: ” +<li><tt>\„</tt>` ` double low-9 quotation mark: „ +<li><tt>\†</tt>` ` dagger: † +<li><tt>\‡</tt>` ` double dagger: ‡ +<li><tt>\‰</tt>` ` per mille sign: ‰ +<li><tt>\‹</tt>` ` single left-pointing angle quotation mark: ‹ +<li><tt>\›</tt>` ` single right-pointing angle quotation mark: › +<li><tt>\€</tt>` ` euro sign: € +</ul> +Doxygen extensions: <ul> -<li><tt>\©</tt> the copyright symbol -<li><tt>\™</tt> the trade mark symbol -<li><tt>\®</tt> the registered trade mark symbol -<li><tt>\<</tt> less-than symbol -<li><tt>\></tt> greater-than symbol -<li><tt>\&</tt> ampersand -<li><tt>\'</tt> single quotation mark (straight) -<li><tt>\"</tt> double quotation mark (straight) -<li><tt>\‘</tt> left single quotation mark -<li><tt>\’</tt> right single quotation mark -<li><tt>\“</tt> left double quotation mark -<li><tt>\”</tt> right double quotation mark -<li><tt>\–</tt> n-dash (for numeric ranges, e.g. 2–8) -<li><tt>\—</tt> m-dash (for parenthetical punctuation — like this) -<li><tt>\&?uml;</tt> where ? is one of {A,E,I,O,U,Y,a,e,i,o,u,y}, - writes a character with a diaeresis accent (like ä). -<li><tt>\&?acute;</tt> where ? is one of {A,E,I,O,U,Y,a,e,i,o,u,y}, - writes a character with an acute accent (like á). -<li><tt>\&?grave;</tt> where ? is one of {A,E,I,O,U,a,e,i,o,u,y}, - writes a character with a grave accent (like à). -<li><tt>\&?circ;</tt> where ? is one of {A,E,I,O,U,a,e,i,o,u,y}, - writes a character with a circumflex accent (like â). -<li><tt>\&?tilde;</tt> where ? is one of {A,N,O,a,n,o}, - writes a character with a tilde accent (like ã). -<li><tt>\ß</tt> write a sharp s (i.e. ß) to the output. -<li><tt>\&?cedil;</tt> where ? is one of {c,C}, - writes a c-cedille (like ç). -<li><tt>\&?ring;</tt> where ? is one of {a,A}, - writes an <tt>a</tt> with a ring (like å). -<li><tt>\ </tt> a non breakable space. -<li><tt>\Γ</tt> Greek letter Gamma Γ. -<li><tt>\Δ</tt> Greek letter Delta Δ. -<li><tt>\Θ</tt> Greek letter Theta Θ. -<li><tt>\Λ</tt> Greek letter Lambda Λ. -<li><tt>\Ξ</tt> Greek letter Xi Ξ. -<li><tt>\Π</tt> Greek letter Pi Π. -<li><tt>\Σ</tt> Greek letter Sigma Σ. -<li><tt>\Υ</tt> Greek letter Upsilon Υ. -<li><tt>\Φ</tt> Greek letter Phi Φ. -<li><tt>\Ψ</tt> Greek letter Psi Ψ. -<li><tt>\Ω</tt> Greek letter Omega Ω. -<li><tt>\α</tt> Greek letter alpha α. -<li><tt>\β</tt> Greek letter beta β. -<li><tt>\γ</tt> Greek letter gamma γ. -<li><tt>\δ</tt> Greek letter delta δ. -<li><tt>\ε</tt> Greek letter epsilon ε. -<li><tt>\ζ</tt> Greek letter zeta ζ. -<li><tt>\η</tt> Greek letter eta η. -<li><tt>\θ</tt> Greek letter theta θ. -<li><tt>\ι</tt> Greek letter iota ι. -<li><tt>\κ</tt> Greek letter kappa κ. -<li><tt>\λ</tt> Greek letter lambda λ. -<li><tt>\μ</tt> Greek letter mu μ. -<li><tt>\ν</tt> Greek letter nu ν. -<li><tt>\ξ</tt> Greek letter xi ξ. -<li><tt>\π</tt> Greek letter pi π. -<li><tt>\ρ</tt> Greek letter rho ρ. -<li><tt>\σ</tt> Greek letter sigma σ. -<li><tt>\τ</tt> Greek letter tau τ. -<li><tt>\υ</tt> Greek letter upsilon υ. -<li><tt>\φ</tt> Greek letter phi φ. -<li><tt>\χ</tt> Greek letter chi χ. -<li><tt>\ψ</tt> Greek letter psi ψ. -<li><tt>\ω</tt> Greek letter omega ω. -<li><tt>\ς</tt> Greek final sigma ς. -<li><tt>\§</tt> section sign §. -<li><tt>\°</tt> degree °. -<li><tt>\′</tt> prime ′. -<li><tt>\″</tt> double prime ″. -<li><tt>\∞</tt> infinity ∞. -<li><tt>\∅</tt> empty set ∅. -<li><tt>\±</tt> plus or minus ±. -<li><tt>\×</tt> multiplication sign ×. -<li><tt>\−</tt> minus sign −. -<li><tt>\⋅</tt> centered dot ⋅. -<li><tt>\∂</tt> partial derivative ∂. -<li><tt>\∇</tt> nabla symbol ∇. -<li><tt>\√</tt> square root √. -<li><tt>\⊥</tt> perpendicular symbol ⊥. -<li><tt>\∑</tt> sum ∑. -<li><tt>\∫</tt> integral ∫. -<li><tt>\∏</tt> product ∏. -<li><tt>\∼</tt> similar to ∼. -<li><tt>\≈</tt> approximately equal to ≈. -<li><tt>\≠</tt> not equal to ≠. -<li><tt>\≡</tt> equivalent to ≡. -<li><tt>\∝</tt> proportional to ∝. -<li><tt>\≤</tt> less than or equal to ≤. -<li><tt>\≥</tt> greater than or equal to ≥. -<li><tt>\←</tt> left arrow ←. -<li><tt>\→</tt> right arrow →. -<li><tt>\∈</tt> in the set ∈. -<li><tt>\∉</tt> not in the set ∉. -<li><tt>\⌈</tt> left ceiling sign ⌈. -<li><tt>\⌉</tt> right ceiling sign ⌉. -<li><tt>\⌊</tt> left floor sign ⌊. -<li><tt>\⌋</tt> right floor sign ⌋. +<li><tt>\&tm;</tt>` ` trade mark sign: &tm; +<li><tt>\'</tt>` ` apostrophe: ' </ul> Finally, to put invisible comments inside comment blocks, HTML style |