Bold nabla, a heavy downward-pointing triangle, the del operator used for gradient, divergence, and curl in vector calculus.
U+1D6C0MATHEMATICAL BOLD CAPITAL OMEGAU+1D6C2MATHEMATICAL BOLD SMALL ALPHAU+1D6BFMATHEMATICAL BOLD CAPITAL PSIU+1D6C3MATHEMATICAL BOLD SMALL BETAU+1D6BEMATHEMATICAL BOLD CAPITAL CHIU+1D6C4MATHEMATICAL BOLD SMALL GAMMAU+1D6BDMATHEMATICAL BOLD CAPITAL PHIU+1D6C5MATHEMATICAL BOLD SMALL DELTAU+1D6BCMATHEMATICAL BOLD CAPITAL UPSILONU+1D6C6MATHEMATICAL BOLD SMALL EPSILONU+1D6BBMATHEMATICAL BOLD CAPITAL TAUU+1D6C7MATHEMATICAL BOLD SMALL ZETA997 characters in the Mathematical Alphanumeric Symbols Unicode block, from number 681.
U+1D6C1MATHEMATICAL BOLD NABLAU+1D6C2MATHEMATICAL BOLD SMALL ALPHAU+1D6C3MATHEMATICAL BOLD SMALL BETAU+1D6C4MATHEMATICAL BOLD SMALL GAMMAU+1D6C5MATHEMATICAL BOLD SMALL DELTAU+1D6C6MATHEMATICAL BOLD SMALL EPSILONU+1D6C7MATHEMATICAL BOLD SMALL ZETAU+1D6C8MATHEMATICAL BOLD SMALL ETAU+1D6C9MATHEMATICAL BOLD SMALL THETAU+1D6CAMATHEMATICAL BOLD SMALL IOTAU+1D6CBMATHEMATICAL BOLD SMALL KAPPAU+1D6CCMATHEMATICAL BOLD SMALL LAMDAU+1D6CDMATHEMATICAL BOLD SMALL MUU+1D6CEMATHEMATICAL BOLD SMALL NUU+1D6CFMATHEMATICAL BOLD SMALL XIU+1D6D0MATHEMATICAL BOLD SMALL OMICRONU+1D6D1MATHEMATICAL BOLD SMALL PIU+1D6D2MATHEMATICAL BOLD SMALL RHOU+1D6D3MATHEMATICAL BOLD SMALL FINAL SIGMAU+1D6D4MATHEMATICAL BOLD SMALL SIGMAU+1D6D5MATHEMATICAL BOLD SMALL TAUU+1D6D6MATHEMATICAL BOLD SMALL UPSILONU+1D6D7MATHEMATICAL BOLD SMALL PHIU+1D6D8MATHEMATICAL BOLD SMALL CHIU+1D6D9MATHEMATICAL BOLD SMALL PSIU+1D6DAMATHEMATICAL BOLD SMALL OMEGAU+1D6DBMATHEMATICAL BOLD PARTIAL DIFFERENTIALU+1D6DCMATHEMATICAL BOLD EPSILON SYMBOLU+1D6DDMATHEMATICAL BOLD THETA SYMBOLU+1D6DEMATHEMATICAL BOLD KAPPA SYMBOLU+1D6DFMATHEMATICAL BOLD PHI SYMBOLU+1D6E0MATHEMATICAL BOLD RHO SYMBOLU+1D6E1MATHEMATICAL BOLD PI SYMBOLU+1D6E2MATHEMATICAL ITALIC CAPITAL ALPHAU+1D6E3MATHEMATICAL ITALIC CAPITAL BETAU+1D6E4MATHEMATICAL ITALIC CAPITAL GAMMAU+1D6E5MATHEMATICAL ITALIC CAPITAL DELTAU+1D6E6MATHEMATICAL ITALIC CAPITAL EPSILONU+1D6E7MATHEMATICAL ITALIC CAPITAL ZETAU+1D6E8MATHEMATICAL ITALIC CAPITAL ETAU+1D6E9MATHEMATICAL ITALIC CAPITAL THETAU+1D6EAMATHEMATICAL ITALIC CAPITAL IOTAU+1D6EBMATHEMATICAL ITALIC CAPITAL KAPPAU+1D6ECMATHEMATICAL ITALIC CAPITAL LAMDAU+1D6EDMATHEMATICAL ITALIC CAPITAL MUU+1D6EEMATHEMATICAL ITALIC CAPITAL NUU+1D6EFMATHEMATICAL ITALIC CAPITAL XIU+1D6F0MATHEMATICAL ITALIC CAPITAL OMICRONU+1D6F1MATHEMATICAL ITALIC CAPITAL PIU+1D6F2MATHEMATICAL ITALIC CAPITAL RHOU+1D6F3MATHEMATICAL ITALIC CAPITAL THETA SYMBOLU+1D6F4MATHEMATICAL ITALIC CAPITAL SIGMAU+1D6F5MATHEMATICAL ITALIC CAPITAL TAUU+1D6F6MATHEMATICAL ITALIC CAPITAL UPSILONU+1D6F7MATHEMATICAL ITALIC CAPITAL PHIU+1D6F8MATHEMATICAL ITALIC CAPITAL CHIU+1D6F9MATHEMATICAL ITALIC CAPITAL PSIU+1D6FAMATHEMATICAL ITALIC CAPITAL OMEGAU+1D6FBMATHEMATICAL ITALIC NABLAU+1D6FCMATHEMATICAL ITALIC SMALL ALPHAU+1D6FDMATHEMATICAL ITALIC SMALL BETAU+1D6FEMATHEMATICAL ITALIC SMALL GAMMAU+1D6FFMATHEMATICAL ITALIC SMALL DELTAU+1D700MATHEMATICAL ITALIC SMALL EPSILONU+1D701MATHEMATICAL ITALIC SMALL ZETAU+1D702MATHEMATICAL ITALIC SMALL ETAU+1D703MATHEMATICAL ITALIC SMALL THETAU+1D704MATHEMATICAL ITALIC SMALL IOTAU+1D705MATHEMATICAL ITALIC SMALL KAPPAU+1D706MATHEMATICAL ITALIC SMALL LAMDAU+1D707MATHEMATICAL ITALIC SMALL MUU+1D708MATHEMATICAL ITALIC SMALL NUU+1D709MATHEMATICAL ITALIC SMALL XIU+1D70AMATHEMATICAL ITALIC SMALL OMICRONU+1D70BMATHEMATICAL ITALIC SMALL PIU+1D70CMATHEMATICAL ITALIC SMALL RHOU+1D70DMATHEMATICAL ITALIC SMALL FINAL SIGMAU+1D70EMATHEMATICAL ITALIC SMALL SIGMAU+1D70FMATHEMATICAL ITALIC SMALL TAUU+1D710MATHEMATICAL ITALIC SMALL UPSILONU+1D711MATHEMATICAL ITALIC SMALL PHIU+1D712MATHEMATICAL ITALIC SMALL CHIU+1D713MATHEMATICAL ITALIC SMALL PSIU+1D714MATHEMATICAL ITALIC SMALL OMEGAU+1D715MATHEMATICAL ITALIC PARTIAL DIFFERENTIALU+1D716MATHEMATICAL ITALIC EPSILON SYMBOLU+1D717MATHEMATICAL ITALIC THETA SYMBOLU+1D718MATHEMATICAL ITALIC KAPPA SYMBOLU+1D719MATHEMATICAL ITALIC PHI SYMBOLU+1D71AMATHEMATICAL ITALIC RHO SYMBOLU+1D71BMATHEMATICAL ITALIC PI SYMBOLU+1D71CMATHEMATICAL BOLD ITALIC CAPITAL ALPHAU+1D71DMATHEMATICAL BOLD ITALIC CAPITAL BETAU+1D71EMATHEMATICAL BOLD ITALIC CAPITAL GAMMAU+1D71FMATHEMATICAL BOLD ITALIC CAPITAL DELTAU+1D720MATHEMATICAL BOLD ITALIC CAPITAL EPSILONU+1D721MATHEMATICAL BOLD ITALIC CAPITAL ZETAU+1D722MATHEMATICAL BOLD ITALIC CAPITAL ETAU+1D723MATHEMATICAL BOLD ITALIC CAPITAL THETAU+1D724MATHEMATICAL BOLD ITALIC CAPITAL IOTAU+1D725MATHEMATICAL BOLD ITALIC CAPITAL KAPPAU+1D726MATHEMATICAL BOLD ITALIC CAPITAL LAMDAU+1D727MATHEMATICAL BOLD ITALIC CAPITAL MUU+1D728MATHEMATICAL BOLD ITALIC CAPITAL NUU+1D729MATHEMATICAL BOLD ITALIC CAPITAL XIU+1D72AMATHEMATICAL BOLD ITALIC CAPITAL OMICRONU+1D72BMATHEMATICAL BOLD ITALIC CAPITAL PIU+1D72CMATHEMATICAL BOLD ITALIC CAPITAL RHOU+1D72DMATHEMATICAL BOLD ITALIC CAPITAL THETA SYMBOLU+1D72EMATHEMATICAL BOLD ITALIC CAPITAL SIGMAU+1D72FMATHEMATICAL BOLD ITALIC CAPITAL TAUU+1D730MATHEMATICAL BOLD ITALIC CAPITAL UPSILONU+1D731MATHEMATICAL BOLD ITALIC CAPITAL PHIU+1D732MATHEMATICAL BOLD ITALIC CAPITAL CHIU+1D733MATHEMATICAL BOLD ITALIC CAPITAL PSIU+1D734MATHEMATICAL BOLD ITALIC CAPITAL OMEGAU+1D735MATHEMATICAL BOLD ITALIC NABLAU+1D736MATHEMATICAL BOLD ITALIC SMALL ALPHAU+1D737MATHEMATICAL BOLD ITALIC SMALL BETAU+1D738MATHEMATICAL BOLD ITALIC SMALL GAMMAU+1D739MATHEMATICAL BOLD ITALIC SMALL DELTAU+1D73AMATHEMATICAL BOLD ITALIC SMALL EPSILONU+1D73BMATHEMATICAL BOLD ITALIC SMALL ZETAU+1D73CMATHEMATICAL BOLD ITALIC SMALL ETAU+1D73DMATHEMATICAL BOLD ITALIC SMALL THETAU+1D73EMATHEMATICAL BOLD ITALIC SMALL IOTAU+1D73FMATHEMATICAL BOLD ITALIC SMALL KAPPAU+1D740MATHEMATICAL BOLD ITALIC SMALL LAMDAU+1D741MATHEMATICAL BOLD ITALIC SMALL MUU+1D742MATHEMATICAL BOLD ITALIC SMALL NUU+1D743MATHEMATICAL BOLD ITALIC SMALL XIU+1D744MATHEMATICAL BOLD ITALIC SMALL OMICRONU+1D745MATHEMATICAL BOLD ITALIC SMALL PIU+1D746MATHEMATICAL BOLD ITALIC SMALL RHOU+1D747MATHEMATICAL BOLD ITALIC SMALL FINAL SIGMAU+1D748MATHEMATICAL BOLD ITALIC SMALL SIGMAU+1D749MATHEMATICAL BOLD ITALIC SMALL TAUU+1D74AMATHEMATICAL BOLD ITALIC SMALL UPSILONU+1D74BMATHEMATICAL BOLD ITALIC SMALL PHIU+1D74CMATHEMATICAL BOLD ITALIC SMALL CHIU+1D74DMATHEMATICAL BOLD ITALIC SMALL PSIU+1D74EMATHEMATICAL BOLD ITALIC SMALL OMEGAU+1D74FMATHEMATICAL BOLD ITALIC PARTIAL DIFFERENTIALU+1D750MATHEMATICAL BOLD ITALIC EPSILON SYMBOLU+1D751MATHEMATICAL BOLD ITALIC THETA SYMBOLU+1D752MATHEMATICAL BOLD ITALIC KAPPA SYMBOLU+1D753MATHEMATICAL BOLD ITALIC PHI SYMBOLU+1D754MATHEMATICAL BOLD ITALIC RHO SYMBOLU+1D755MATHEMATICAL BOLD ITALIC PI SYMBOLU+1D756MATHEMATICAL SANS-SERIF BOLD CAPITAL ALPHAU+1D757MATHEMATICAL SANS-SERIF BOLD CAPITAL BETAU+1D758MATHEMATICAL SANS-SERIF BOLD CAPITAL GAMMAU+1D759MATHEMATICAL SANS-SERIF BOLD CAPITAL DELTAU+1D75AMATHEMATICAL SANS-SERIF BOLD CAPITAL EPSILONU+1D75BMATHEMATICAL SANS-SERIF BOLD CAPITAL ZETAU+1D75CMATHEMATICAL SANS-SERIF BOLD CAPITAL ETAU+1D75DMATHEMATICAL SANS-SERIF BOLD CAPITAL THETAU+1D75EMATHEMATICAL SANS-SERIF BOLD CAPITAL IOTAU+1D75FMATHEMATICAL SANS-SERIF BOLD CAPITAL KAPPAU+1D760MATHEMATICAL SANS-SERIF BOLD CAPITAL LAMDAU+1D761MATHEMATICAL SANS-SERIF BOLD CAPITAL MUU+1D762MATHEMATICAL SANS-SERIF BOLD CAPITAL NUU+1D763MATHEMATICAL SANS-SERIF BOLD CAPITAL XIU+1D764MATHEMATICAL SANS-SERIF BOLD CAPITAL OMICRONU+1D765MATHEMATICAL SANS-SERIF BOLD CAPITAL PIU+1D766MATHEMATICAL SANS-SERIF BOLD CAPITAL RHOU+1D767MATHEMATICAL SANS-SERIF BOLD CAPITAL THETA SYMBOLU+1D768MATHEMATICAL SANS-SERIF BOLD CAPITAL SIGMAU+1D769MATHEMATICAL SANS-SERIF BOLD CAPITAL TAUU+1D76AMATHEMATICAL SANS-SERIF BOLD CAPITAL UPSILONU+1D76BMATHEMATICAL SANS-SERIF BOLD CAPITAL PHIU+1D76CMATHEMATICAL SANS-SERIF BOLD CAPITAL CHIU+1D76DMATHEMATICAL SANS-SERIF BOLD CAPITAL PSIU+1D76EMATHEMATICAL SANS-SERIF BOLD CAPITAL OMEGAU+1D76FMATHEMATICAL SANS-SERIF BOLD NABLAU+1D770MATHEMATICAL SANS-SERIF BOLD SMALL ALPHAU+1D771MATHEMATICAL SANS-SERIF BOLD SMALL BETAU+1D772MATHEMATICAL SANS-SERIF BOLD SMALL GAMMAU+1D773MATHEMATICAL SANS-SERIF BOLD SMALL DELTAU+1D774MATHEMATICAL SANS-SERIF BOLD SMALL EPSILONU+1D775MATHEMATICAL SANS-SERIF BOLD SMALL ZETAU+1D776MATHEMATICAL SANS-SERIF BOLD SMALL ETAU+1D777MATHEMATICAL SANS-SERIF BOLD SMALL THETAU+1D778MATHEMATICAL SANS-SERIF BOLD SMALL IOTAU+1D779MATHEMATICAL SANS-SERIF BOLD SMALL KAPPAU+1D77AMATHEMATICAL SANS-SERIF BOLD SMALL LAMDAU+1D77BMATHEMATICAL SANS-SERIF BOLD SMALL MUU+1D77CMATHEMATICAL SANS-SERIF BOLD SMALL NUU+1D77DMATHEMATICAL SANS-SERIF BOLD SMALL XIU+1D77EMATHEMATICAL SANS-SERIF BOLD SMALL OMICRONU+1D77FMATHEMATICAL SANS-SERIF BOLD SMALL PIU+1D780MATHEMATICAL SANS-SERIF BOLD SMALL RHOU+1D781MATHEMATICAL SANS-SERIF BOLD SMALL FINAL SIGMAU+1D782MATHEMATICAL SANS-SERIF BOLD SMALL SIGMAU+1D783MATHEMATICAL SANS-SERIF BOLD SMALL TAUU+1D784MATHEMATICAL SANS-SERIF BOLD SMALL UPSILONU+1D785MATHEMATICAL SANS-SERIF BOLD SMALL PHIU+1D786MATHEMATICAL SANS-SERIF BOLD SMALL CHIU+1D787MATHEMATICAL SANS-SERIF BOLD SMALL PSIU+1D788MATHEMATICAL SANS-SERIF BOLD SMALL OMEGA…and 117 more characters.