Useful Html display special characters

1. display cubic meters m ³/s similarly show square meters is m ²/s2. other special symbols indicate that this is what I found online, after searching for a long time, I hope to share with you the next Character Entity in three parts: The first part is a & symbol, the English name is ampersand; the second part is the Entity) name or # With the Entity number; the third part is a semicolon. The advantage of using an Entity name is that it is easy to understand. When you look at it, you can probably guess what it means to be less, however, not all browsers support the latest Entity names. Entity numbers can be processed by various browsers. CharacterEntityDecimalHexRendering in Your BrowserEntityDecimalHexLatin small f with hook = function = florin & fnof; & #402; & # x192; cannot exceed Greek capital letter alpha & Alpha; & #913; & # x391; commandid without Greek capital letter beta & Beta; & #914; & # x392; commandid without Greek capital letter gamma & Gamma; & #915; & # x393; gamma Greek capital letter delta & Delta; & #916; & # x394; △△greek capital letter epsilon & Epsilon; & #917; & # x395; zookeeper senior Greek capital letter z Eta & eta; & #918; & # x396; has been converted into Greek capital letter Eta & eta; & #919; & # x397; has been converted into Greek capital letter theta & Theta; & #920; & # x398; commandid without Greek capital letter iota & Iota; & #921; & # x399; commandid without Greek capital letter kappa & Kappa; & #922; & # x39A; zookeeper Greek capital letter lambda & Lambda; & #923; & # x39B; lambda Lambda Greek capital letter mu & Mu; & #924; & # x39C; our primary Greek capital letter nu & Nu; & #925; & # x39D; primary Greek capital letter xi & Xi; & #926; & # x39E; primary Greek Capital letter omicron & Omicron; & #927; & # x39F; Venture capital letter pi & Pi; & #928; & # x3A0; senior Greek capital letter ROV & amp; #929; & amp; # x3A1; senior Greek capital letter sigma & Sigma; & amp; #931; & amp; # x3A3; Σ Sigma Greek capital letter tau & Tau; & #932; & # x3A4; Venture capital Greek capital letter upsilon & Upsilon; & #933; & # x3A5; zookeeper capital letter phi & Phi; & #934; & # x3A6; phi Phi phi Greek capital letter chi & Chi; & #935; & # x3A7; zookeeper major Greek capital letter psi & Ps I; & #936; & # x3A8; venture capital letter omega & Omega; & #937; & # x3A9; omega Omega Greek small letter alpha & alpha; & #945; & # x3B1; α Greek small letter beta & beta; & #946; & # x3B2; β Greek small letter gamma & gamma; & #947; & # x3B3; γ gamma Greek small letter delta & delta; & #948; & # x3B4; delta Greek small letter epsilon & epsilon; & #949; & # x3B5; ε Greek small letter ε & amp; #950; & amp; # x3B6; ε Greek small letter eta & amp; eta; & amp; #951; & amp; # x3B7; ETA Greek sm All letter theta & theta; & #952; & # x3B8; θ Greek small letter iota & iota; & #953; & # x3B9; optional values: Greek small letter kappa & kappa; & #954; & # x3BA; kappa Greek small letter lambda & lambda; & #955; & # x3BB; lambda Greek small letter mu & mu; & #956; & # x3BC; μ Greek small letter nu & nu; & #957; & # x3BD; ν V. V Greek small letter xi & xi; & #958; & # x3BE; E. Z. E. Greek small letter omicron & omicron; & #959; & # x3BF; ο Greek small letter pi & pi; & #960; & # x3C0; π Greek Small letter ROV & records; & #961; & # x3C1; p Greek small letter final sigma & sigmaf; & #962; & # x3C2; ς Greek small letter sigma & sigma; & #963; & # x3C3; σ Greek small letter tau & tau; & #964; & # x3C4; tau Greek small letter upsilon & upsilon; & #965; & # x3C5; 1_1_greek small letter phi & phi; & #966; & # x3C6; phi Greek small letter chi & chi; & #967; & # x3C7; x2 Greek small letter psi & psi; & #968; & # x3C8; PSI Greek small letter omega & omega; & #969 ;& # X3C9; ω Greek small letter theta symbol & thetasym; & #977; & # x3D1; ###greek upsilon with hook symbol & upsih; & #978; & # x3D2; symbol Greek pi symbol & piv; & #982; & # x3D6; symbol bullet = black small circle & bull; & #8226; & # x2022; • horizontal ellipsis = three dot leader & hellip; & #8230; & # x2026 ;......... Prime = minutes = feet & prime; & #8242; & # x2032; ''' double prime = seconds = inches & Prime; & #8243; & # x2033; & quot; overline = spacing overscore & oline; & #8254; & # x203E; zookeeper fraction slash & frasl; & #8260; & # x2044; required bytes using script capital P = power set = Weierstrass p & weierp; & #8472; & # x2118; required bytes using blackletter capital I = imaginary part & image; & #8465; & # x2111; symbol blackletter capital R = real part symbol & real; & #8476; & # x211C; symbol trade mark sign & trade; & #8482; & # x2122;™™™Alef symbol = first transfinite cardinal & alefsym; & #8501; & # x2135; Role role leftwards arrow & larr; & #8592; & # x2190; please wait until upwards arrow & uarr; & #8593; & # x2191; please wait until rightwards arrow & rarr; & #8594; & # x2192; → downwards arrow & darr; & #8595; & # x2193; invalid argument left right arrow & harr; & #8596; & # x2194;↔↔↔Downwards arrow with corner leftwards = carriage return & crarr; & #8629; & # x21B5; invalid parameter leftwards double arrow & lArr; & #8656; & # x21D0; optional values upwards double arrow & uArr; & #8657; & # x21D1; optional values specify rightwards double arrow & rArr; & #8658; & # x21D2; optional values lower downwards double arrow & dArr; & #8659; & # x21D3; optional values lower left right double arrow & hArr; & #8660; & # x21D4; please wait for all & forall; & #8704; & # x2200; please wait for partial differential & part; & #8706; & # x2202; please wait until there exists & exist; & #8707; & # x2203; zookeeper empty set = null set = diameter & empty; & #8709; & # x2205; zookeeper nabla = backward difference & nabla; & #8711; & # x2207; commandid struct element of & isin; & #8712; & # x2208; ε, ε, not an element of & notin; & #8713; & # x2209; too many contains as member & ni; & #8715; & # x220B; too many products = product sign & prod; & #8719; & # x220F; memory usage limit n-ary sumation & sum; & #8721; & # x2211; Sigma minus sign & minus; & #8722; & # x2212; −−−asterisk operator & lowast; & #8727; & # x2217; symbol square root = radical sign & radic; & #8730; & # x221A; √ proportional to & prop; & #8733; & # x221D; interval between infinity & infin; & #8734; & # x221E; ∞ angle & ang; & #8736; & # x2220; upgrade logging logical and = wedge & and; & #8743; & # x2227; upgrade logging logical or = vee & or; & #8744; & # x2228; has been connected to intersection = cap & cap; & #8745; & # x2229; has been connected to union = cup & cup; & #8746; & # x222A; required bytes have integral & int; & #8747; & # x222B; required bytes have therefore & there4; & #8756; & # x2234; extends extends tilde operator = varies with = similar to & sim; & #8764; & # x223C; extends approximately equal to & cong; & #8773; & # x2245; required bytes passed almost equal to = asymptotic to & asymp; & #8776; & # x2248; ≈ not equal to & ne; & #8800; & # x2260; =====identical to & equiv; & #8801; & # x2261; too many less-than or equal to & le; & #8804; & # x2264; ≤≤≤greater-than or equal to & ge; & #8805; & # x2265; ≥≥subset of & sub; & #8834; & # x2282; too many superset of & sup; & #8835; & # x2283; too many records not a subset of & nsub; & #8836; & # x2284; please specify your subset of or equal to & sube; & #8838; & # x2286; please specify your superset of or equal to & supe; & #8839; & # x2287; please export your circled plus = direct sum & oplus; & #8853; & # x2295; please export your circled times = vector product & otimes; & #8855; & # x2297; too many groups up tack = orthogonal to = perpendicular & perp; & #8869; & # x22A5; too many dot operator & sdot; & #8901; & # x22C5; required bytes left ceiling = APL upstile & lceil; & #8968; & # x2308; required bytes right ceiling & rceil; & #8969; & # x2309; too many rows left floor = APL downstile & lfloor; & #8970; & # x230A; too many right floor & rfloor; & #8971; & # x230B; required bytes when left-pointing angle bracket = bra & lang; & #9001; & # x2329; then <right-pointing angle bracket = ket & rang; & #9002; & # x232A; large> lozenge & loz; & #9674; & # x25CA; zookeeper black spade suit & spades; & #9824; & # x2660;♠♠♠Black club suit = shamrock & clubs; & #9827; & # x2663;♣♣♣Black heart suit = valentine & hearts; & #9829; & # x2665;♥♥♥Black diamond suit & diams; & #9830; & # x2666;♦♦♦