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Math Symbols List – x RapidTables Home rsaquo symbols of all mathematical and signs meaning examples Basic math Geometry Algebra Probability amp statistics Set theory Logic Calculus analysis Number Greek Roman numerals Symbol Name Meaning definition Example equals sign equality is equal to not inequality approximately approximation sin y means gt strict greater than lt less or parentheses calculate expression inside first times brackets plus addition minus subtraction plusmn both operations asterisk multiplication sdot dot divide division obelus slash mdash horizontal line fraction mod modulo remainder calculation period decimal point separator ab power exponent a b caret square root nbsp cube fourth n n-th radical for percent permil per-mille ppm per-million ppb per-billion ppt per-trillion angle formed by two rays ABC deg measured spherical AOB right alpha degree turn prime arcminute Prime double arcsecond infinite AB segment from A B ray that start arc perp perpendicular lines AC BC par parallel CD congruent equivalence geometric shapes size XYZ similarity same triangle shape BCD x-y distance between points pi constant the ratio circumference diameter circle c d r rad radians unit grad gradians gons grads g variable unknown value find when then identical weak proportional kx k lemniscate infinity symbol much braces set floor rounds number lower integer ceiling upper exclamation mark factorial vertical bars absolute f function maps values composition x- open interval closed delta change difference t discriminant ac sigma summation sum in range series xi xn capital product e Euler’s lim Euler-Mascheroni golden Linear middot scalar cross vector tensor inner matrix numbers determinant det norm AT transpose ij ji dagger Hermitian conjugate inverse A- I rank dim U dimension P probability event events intersection union conditional given occured density pdf dx F cumulative distribution cdf X population mean E expectation expected random Y var variance std standard deviation median middle cov covariance variables corr correlation Mo mode occurs most frequently MR mid-range xmax xmin Md sample half below this Q quartile are second samples third average arithmetic s estimator zx score x-x sx N normal gaussian uniform exp exponential e- gamma xc- chi-square xk e-x Bin p binomial nCk pk -p n-k Poisson ke- Geom HG K hyper-geometric Bern Bernoulli Combinatorics nPk permutation combination C collection elements objects belong subset included proper but superset includes subsets sets have members Ac complement do relative A-B symmetric their element belongs membership no ordered pair cartesian pairs cardinality bar such aleph-null natural aleph-one countable ordinal Oslash empty universal possible whole with zero without rational real complex z bi i circumflex ampersand reversed x’ single quote negation circled oplus exclusive xor tilde implies equivalent if only iff harr there exists does therefore because since limit epsilon represents very small near ‘ derivative Lagrange’s notation ” nth derivation Leibniz’s time Newton’s Dx partial int integral opposite integration dxdy triple dxdydz contour surface volume imaginary a-bi Re part Im magnitude Sqrt arg argument The radius plane nabla del gradient divergence operator convolution h Laplace transform Fourier Numeral Western Arabic Eastern Hebrew one II three III four IV five V six VI seven VII eight VIII nine IX ten eleven XI twelve XII thirteen XIII fourteen XIV fifteen XV sixteen XVI seventeen XVII eighteen XVIII nineteen XIX twenty XX thirty XXX forty XL fifty L sixty LX seventy LXX eighty LXXX ninety XC hundred alphabet letters Upper Case Letter Lower English Equivalent Pronounce Alpha al-fa Beta be-ta Gamma ga-ma Delta del-ta Epsilon ep-si-lon Zeta ze-ta Eta eh-ta Theta th te-ta Iota io-ta Kappa ka-pa Lambda l lam-da Mu m m-yoo Nu noo Xi x-ee Omicron o o-mee-c-ron Pi pa-yee Rho row Sigma sig-ma Tau ta-oo Upsilon u oo-psi-lon Phi ph f-ee Chi ch kh-ee Psi ps p-see Omega o-me-ga numeral defined CC CCC D DC DCC DCCC CM M See also Statistical Infinity HTML codes calculators Write how improve page Submit Feedback MATH SYMBOLS RAPID TABLES Recommend Site Send About Web Electricity Calculators Converters Tools copy com Terms Use Privacy Policy Manage Cookies This website uses cookies your experience analyze traffic display ads Learn more OK Settings