# Blackboard bold (bboldx)

Blackboard-bold letters and delimiters from bboldx.

https://texform.dev/latex/topics/blackboard-bold

This topic has 168 symbols from the bboldx package. Symbols are single characters and are not render-tested, so they carry no support level. Entries are ordered by how often they appear in corpus formulas.

| Name | Kind | Definition | Packages | Frequency |
| --- | --- | --- | --- | --- |
| [\\bbalpha](https://texform.dev/latex/symbols/bbalpha) | symbol | α U+03B1 greek small letter alpha | bboldx | — |
| [\\bbbeta](https://texform.dev/latex/symbols/bbbeta) | symbol | β U+03B2 greek small letter beta | bboldx | — |
| [\\bbchi](https://texform.dev/latex/symbols/bbchi) | symbol | χ U+03C7 greek small letter chi | bboldx | — |
| [\\bbdelta](https://texform.dev/latex/symbols/bbdelta) | symbol | δ U+03B4 greek small letter delta | bboldx | — |
| [\\bbDelta](https://texform.dev/latex/symbols/bbDelta) | symbol | ∆ U+2206 increment | bboldx | — |
| [\\bbdotlessi](https://texform.dev/latex/symbols/bbdotlessi) | symbol | ı U+0131 latin small letter dotless i | bboldx | — |
| [\\bbdotlessj](https://texform.dev/latex/symbols/bbdotlessj) | symbol | ȷ U+0237 latin small letter dotless j | bboldx | — |
| [\\bbepsilon](https://texform.dev/latex/symbols/bbepsilon) | symbol | ε U+03B5 greek small letter epsilon | bboldx | — |
| [\\bbeta](https://texform.dev/latex/symbols/bbeta) | symbol | η U+03B7 greek small letter eta | bboldx | — |
| [\\bbgamma](https://texform.dev/latex/symbols/bbgamma) | symbol | γ U+03B3 greek small letter gamma | bboldx | — |
| [\\bbGamma](https://texform.dev/latex/symbols/bbGamma) | symbol | Γ U+0393 greek capital letter gamma | bboldx | — |
| [\\bbiota](https://texform.dev/latex/symbols/bbiota) | symbol | ι U+03B9 greek small letter iota | bboldx | — |
| [\\bbkappa](https://texform.dev/latex/symbols/bbkappa) | symbol | κ U+03BA greek small letter kappa | bboldx | — |
| [\\bblambda](https://texform.dev/latex/symbols/bblambda) | symbol | λ U+03BB greek small letter lamda | bboldx | — |
| [\\bbLambda](https://texform.dev/latex/symbols/bbLambda) | symbol | Λ U+039B greek capital letter lamda | bboldx | — |
| [\\bbLangle](https://texform.dev/latex/symbols/bbLangle) | symbol | 〈 U+2329 left-pointing angle bracket | bboldx | — |
| [\\bbLbrack](https://texform.dev/latex/symbols/bbLbrack) | symbol | [ U+005B left square bracket | bboldx | — |
| [\\bbLparen](https://texform.dev/latex/symbols/bbLparen) | symbol | ( U+0028 left parenthesis | bboldx | — |
| [\\bbmu](https://texform.dev/latex/symbols/bbmu) | symbol | µ U+00B5 micro sign | bboldx | — |
| [\\bbnu](https://texform.dev/latex/symbols/bbnu) | symbol | ν U+03BD greek small letter nu | bboldx | — |
| [\\bbomega](https://texform.dev/latex/symbols/bbomega) | symbol | ω U+03C9 greek small letter omega | bboldx | — |
| [\\bbOmega](https://texform.dev/latex/symbols/bbOmega) | symbol | Ω U+2126 ohm sign | bboldx | — |
| [\\bbphi](https://texform.dev/latex/symbols/bbphi) | symbol | φ U+03C6 greek small letter phi | bboldx | — |
| [\\bbPhi](https://texform.dev/latex/symbols/bbPhi) | symbol | Φ U+03A6 greek capital letter phi | bboldx | — |
| [\\bbpi](https://texform.dev/latex/symbols/bbpi) | symbol | π U+03C0 greek small letter pi | bboldx | — |
| [\\bbPi](https://texform.dev/latex/symbols/bbPi) | symbol | Π U+03A0 greek capital letter pi | bboldx | — |
| [\\bbpsi](https://texform.dev/latex/symbols/bbpsi) | symbol | ψ U+03C8 greek small letter psi | bboldx | — |
| [\\bbPsi](https://texform.dev/latex/symbols/bbPsi) | symbol | Ψ U+03A8 greek capital letter psi | bboldx | — |
| [\\bbRangle](https://texform.dev/latex/symbols/bbRangle) | symbol | 〉 U+232A right-pointing angle bracket | bboldx | — |
| [\\bbRbrack](https://texform.dev/latex/symbols/bbRbrack) | symbol | ] U+005D right square bracket | bboldx | — |
| [\\bbrho](https://texform.dev/latex/symbols/bbrho) | symbol | ρ U+03C1 greek small letter rho | bboldx | — |
| [\\bbRparen](https://texform.dev/latex/symbols/bbRparen) | symbol | ) U+0029 right parenthesis | bboldx | — |
| [\\bbsigma](https://texform.dev/latex/symbols/bbsigma) | symbol | σ U+03C3 greek small letter sigma | bboldx | — |
| [\\bbSigma](https://texform.dev/latex/symbols/bbSigma) | symbol | Σ U+03A3 greek capital letter sigma | bboldx | — |
| [\\bbtau](https://texform.dev/latex/symbols/bbtau) | symbol | τ U+03C4 greek small letter tau | bboldx | — |
| [\\bbtheta](https://texform.dev/latex/symbols/bbtheta) | symbol | θ U+03B8 greek small letter theta | bboldx | — |
| [\\bbTheta](https://texform.dev/latex/symbols/bbTheta) | symbol | Θ U+0398 greek capital letter theta | bboldx | — |
| [\\bbupsilon](https://texform.dev/latex/symbols/bbupsilon) | symbol | υ U+03C5 greek small letter upsilon | bboldx | — |
| [\\bbUpsilon](https://texform.dev/latex/symbols/bbUpsilon) | symbol | Υ U+03A5 greek capital letter upsilon | bboldx | — |
| [\\bbxi](https://texform.dev/latex/symbols/bbxi) | symbol | ξ U+03BE greek small letter xi | bboldx | — |
| [\\bbXi](https://texform.dev/latex/symbols/bbXi) | symbol | Ξ U+039E greek capital letter xi | bboldx | — |
| [\\bbzeta](https://texform.dev/latex/symbols/bbzeta) | symbol | ζ U+03B6 greek small letter zeta | bboldx | — |
| [\\bfbbalpha](https://texform.dev/latex/symbols/bfbbalpha) | symbol | α U+03B1 greek small letter alpha | bboldx | — |
| [\\bfbbbeta](https://texform.dev/latex/symbols/bfbbbeta) | symbol | β U+03B2 greek small letter beta | bboldx | — |
| [\\bfbbchi](https://texform.dev/latex/symbols/bfbbchi) | symbol | χ U+03C7 greek small letter chi | bboldx | — |
| [\\bfbbdelta](https://texform.dev/latex/symbols/bfbbdelta) | symbol | δ U+03B4 greek small letter delta | bboldx | — |
| [\\bfbbDelta](https://texform.dev/latex/symbols/bfbbDelta) | symbol | ∆ U+2206 increment | bboldx | — |
| [\\bfbbdotlessi](https://texform.dev/latex/symbols/bfbbdotlessi) | symbol | ı U+0131 latin small letter dotless i | bboldx | — |
| [\\bfbbdotlessj](https://texform.dev/latex/symbols/bfbbdotlessj) | symbol | ȷ U+0237 latin small letter dotless j | bboldx | — |
| [\\bfbbepsilon](https://texform.dev/latex/symbols/bfbbepsilon) | symbol | ε U+03B5 greek small letter epsilon | bboldx | — |
| [\\bfbbeta](https://texform.dev/latex/symbols/bfbbeta) | symbol | η U+03B7 greek small letter eta | bboldx | — |
| [\\bfbbgamma](https://texform.dev/latex/symbols/bfbbgamma) | symbol | γ U+03B3 greek small letter gamma | bboldx | — |
| [\\bfbbGamma](https://texform.dev/latex/symbols/bfbbGamma) | symbol | Γ U+0393 greek capital letter gamma | bboldx | — |
| [\\bfbbiota](https://texform.dev/latex/symbols/bfbbiota) | symbol | ι U+03B9 greek small letter iota | bboldx | — |
| [\\bfbbkappa](https://texform.dev/latex/symbols/bfbbkappa) | symbol | κ U+03BA greek small letter kappa | bboldx | — |
| [\\bfbblambda](https://texform.dev/latex/symbols/bfbblambda) | symbol | οBB U+03BF greek small letter omicron | bboldx | — |
| [\\bfbbLambda](https://texform.dev/latex/symbols/bfbbLambda) | symbol | Λ U+039B greek capital letter lamda | bboldx | — |
| [\\bfbbLangle](https://texform.dev/latex/symbols/bfbbLangle) | symbol | 〈 U+2329 left-pointing angle bracket | bboldx | — |
| [\\bfbbLbrack](https://texform.dev/latex/symbols/bfbbLbrack) | symbol | [ U+005B left square bracket | bboldx | — |
| [\\bfbbLparen](https://texform.dev/latex/symbols/bfbbLparen) | symbol | ( U+0028 left parenthesis | bboldx | — |
| [\\bfbbmu](https://texform.dev/latex/symbols/bfbbmu) | symbol | µ U+00B5 micro sign | bboldx | — |
| [\\bfbbnu](https://texform.dev/latex/symbols/bfbbnu) | symbol | ν U+03BD greek small letter nu | bboldx | — |
| [\\bfbbomega](https://texform.dev/latex/symbols/bfbbomega) | symbol | ω U+03C9 greek small letter omega | bboldx | — |
| [\\bfbbOmega](https://texform.dev/latex/symbols/bfbbOmega) | symbol | Ω U+2126 ohm sign | bboldx | — |
| [\\bfbbphi](https://texform.dev/latex/symbols/bfbbphi) | symbol | φ U+03C6 greek small letter phi | bboldx | — |
| [\\bfbbPhi](https://texform.dev/latex/symbols/bfbbPhi) | symbol | Φ U+03A6 greek capital letter phi | bboldx | — |
| [\\bfbbpi](https://texform.dev/latex/symbols/bfbbpi) | symbol | π U+03C0 greek small letter pi | bboldx | — |
| [\\bfbbPi](https://texform.dev/latex/symbols/bfbbPi) | symbol | Π U+03A0 greek capital letter pi | bboldx | — |
| [\\bfbbpsi](https://texform.dev/latex/symbols/bfbbpsi) | symbol | ψ U+03C8 greek small letter psi | bboldx | — |
| [\\bfbbPsi](https://texform.dev/latex/symbols/bfbbPsi) | symbol | Ψ U+03A8 greek capital letter psi | bboldx | — |
| [\\bfbbRangle](https://texform.dev/latex/symbols/bfbbRangle) | symbol | 〉 U+232A right-pointing angle bracket | bboldx | — |
| [\\bfbbRbrack](https://texform.dev/latex/symbols/bfbbRbrack) | symbol | ] U+005D right square bracket | bboldx | — |
| [\\bfbbrho](https://texform.dev/latex/symbols/bfbbrho) | symbol | ρ U+03C1 greek small letter rho | bboldx | — |
| [\\bfbbRparen](https://texform.dev/latex/symbols/bfbbRparen) | symbol | ) U+0029 right parenthesis | bboldx | — |
| [\\bfbbsigma](https://texform.dev/latex/symbols/bfbbsigma) | symbol | σ U+03C3 greek small letter sigma | bboldx | — |
| [\\bfbbSigma](https://texform.dev/latex/symbols/bfbbSigma) | symbol | Σ U+03A3 greek capital letter sigma | bboldx | — |
| [\\bfbbtau](https://texform.dev/latex/symbols/bfbbtau) | symbol | τ U+03C4 greek small letter tau | bboldx | — |
| [\\bfbbtheta](https://texform.dev/latex/symbols/bfbbtheta) | symbol | θ U+03B8 greek small letter theta | bboldx | — |
| [\\bfbbTheta](https://texform.dev/latex/symbols/bfbbTheta) | symbol | Θ U+0398 greek capital letter theta | bboldx | — |
| [\\bfbbupsilon](https://texform.dev/latex/symbols/bfbbupsilon) | symbol | υ U+03C5 greek small letter upsilon | bboldx | — |
| [\\bfbbUpsilon](https://texform.dev/latex/symbols/bfbbUpsilon) | symbol | Υ U+03A5 greek capital letter upsilon | bboldx | — |
| [\\bfbbxi](https://texform.dev/latex/symbols/bfbbxi) | symbol | ξ U+03BE greek small letter xi | bboldx | — |
| [\\bfbbXi](https://texform.dev/latex/symbols/bfbbXi) | symbol | Ξ U+039E greek capital letter xi | bboldx | — |
| [\\bfbbzeta](https://texform.dev/latex/symbols/bfbbzeta) | symbol | ζ U+03B6 greek small letter zeta | bboldx | — |
| [\\txtbbalpha](https://texform.dev/latex/symbols/txtbbalpha) | symbol | α U+03B1 greek small letter alpha | bboldx | — |
| [\\txtbbbeta](https://texform.dev/latex/symbols/txtbbbeta) | symbol | β U+03B2 greek small letter beta | bboldx | — |
| [\\txtbbchi](https://texform.dev/latex/symbols/txtbbchi) | symbol | χ U+03C7 greek small letter chi | bboldx | — |
| [\\txtbbdelta](https://texform.dev/latex/symbols/txtbbdelta) | symbol | δ U+03B4 greek small letter delta | bboldx | — |
| [\\txtbbDelta](https://texform.dev/latex/symbols/txtbbDelta) | symbol | ∆ U+2206 increment | bboldx | — |
| [\\txtbbdotlessi](https://texform.dev/latex/symbols/txtbbdotlessi) | symbol | ı U+0131 latin small letter dotless i | bboldx | — |
| [\\txtbbdotlessj](https://texform.dev/latex/symbols/txtbbdotlessj) | symbol | ȷ U+0237 latin small letter dotless j | bboldx | — |
| [\\txtbbepsilon](https://texform.dev/latex/symbols/txtbbepsilon) | symbol | ε U+03B5 greek small letter epsilon | bboldx | — |
| [\\txtbbeta](https://texform.dev/latex/symbols/txtbbeta) | symbol | η U+03B7 greek small letter eta | bboldx | — |
| [\\txtbbgamma](https://texform.dev/latex/symbols/txtbbgamma) | symbol | γ U+03B3 greek small letter gamma | bboldx | — |
| [\\txtbbGamma](https://texform.dev/latex/symbols/txtbbGamma) | symbol | Γ U+0393 greek capital letter gamma | bboldx | — |
| [\\txtbbiota](https://texform.dev/latex/symbols/txtbbiota) | symbol | ι U+03B9 greek small letter iota | bboldx | — |
| [\\txtbbkappa](https://texform.dev/latex/symbols/txtbbkappa) | symbol | κ U+03BA greek small letter kappa | bboldx | — |
| [\\txtbblambda](https://texform.dev/latex/symbols/txtbblambda) | symbol | λ U+03BB greek small letter lamda | bboldx | — |
| [\\txtbbLambda](https://texform.dev/latex/symbols/txtbbLambda) | symbol | Λ U+039B greek capital letter lamda | bboldx | — |
| [\\txtbbLangle](https://texform.dev/latex/symbols/txtbbLangle) | symbol | 〈 U+2329 left-pointing angle bracket | bboldx | — |
| [\\txtbbLbrack](https://texform.dev/latex/symbols/txtbbLbrack) | symbol | [ U+005B left square bracket | bboldx | — |
| [\\txtbbLparen](https://texform.dev/latex/symbols/txtbbLparen) | symbol | ( U+0028 left parenthesis | bboldx | — |
| [\\txtbbmu](https://texform.dev/latex/symbols/txtbbmu) | symbol | µ U+00B5 micro sign | bboldx | — |
| [\\txtbbnu](https://texform.dev/latex/symbols/txtbbnu) | symbol | ν U+03BD greek small letter nu | bboldx | — |
| [\\txtbbomega](https://texform.dev/latex/symbols/txtbbomega) | symbol | ω U+03C9 greek small letter omega | bboldx | — |
| [\\txtbbOmega](https://texform.dev/latex/symbols/txtbbOmega) | symbol | Ω U+2126 ohm sign | bboldx | — |
| [\\txtbbphi](https://texform.dev/latex/symbols/txtbbphi) | symbol | φ U+03C6 greek small letter phi | bboldx | — |
| [\\txtbbPhi](https://texform.dev/latex/symbols/txtbbPhi) | symbol | Φ U+03A6 greek capital letter phi | bboldx | — |
| [\\txtbbpi](https://texform.dev/latex/symbols/txtbbpi) | symbol | π U+03C0 greek small letter pi | bboldx | — |
| [\\txtbbPi](https://texform.dev/latex/symbols/txtbbPi) | symbol | Π U+03A0 greek capital letter pi | bboldx | — |
| [\\txtbbpsi](https://texform.dev/latex/symbols/txtbbpsi) | symbol | ψ U+03C8 greek small letter psi | bboldx | — |
| [\\txtbbPsi](https://texform.dev/latex/symbols/txtbbPsi) | symbol | Ψ U+03A8 greek capital letter psi | bboldx | — |
| [\\txtbbRangle](https://texform.dev/latex/symbols/txtbbRangle) | symbol | 〉 U+232A right-pointing angle bracket | bboldx | — |
| [\\txtbbRbrack](https://texform.dev/latex/symbols/txtbbRbrack) | symbol | ] U+005D right square bracket | bboldx | — |
| [\\txtbbrho](https://texform.dev/latex/symbols/txtbbrho) | symbol | ρ U+03C1 greek small letter rho | bboldx | — |
| [\\txtbbRparen](https://texform.dev/latex/symbols/txtbbRparen) | symbol | ) U+0029 right parenthesis | bboldx | — |
| [\\txtbbsigma](https://texform.dev/latex/symbols/txtbbsigma) | symbol | σ U+03C3 greek small letter sigma | bboldx | — |
| [\\txtbbSigma](https://texform.dev/latex/symbols/txtbbSigma) | symbol | Σ U+03A3 greek capital letter sigma | bboldx | — |
| [\\txtbbtau](https://texform.dev/latex/symbols/txtbbtau) | symbol | τ U+03C4 greek small letter tau | bboldx | — |
| [\\txtbbtheta](https://texform.dev/latex/symbols/txtbbtheta) | symbol | θ U+03B8 greek small letter theta | bboldx | — |
| [\\txtbbTheta](https://texform.dev/latex/symbols/txtbbTheta) | symbol | Θ U+0398 greek capital letter theta | bboldx | — |
| [\\txtbbupsilon](https://texform.dev/latex/symbols/txtbbupsilon) | symbol | υ U+03C5 greek small letter upsilon | bboldx | — |
| [\\txtbbUpsilon](https://texform.dev/latex/symbols/txtbbUpsilon) | symbol | Υ U+03A5 greek capital letter upsilon | bboldx | — |
| [\\txtbbxi](https://texform.dev/latex/symbols/txtbbxi) | symbol | ξ U+03BE greek small letter xi | bboldx | — |
| [\\txtbbXi](https://texform.dev/latex/symbols/txtbbXi) | symbol | Ξ U+039E greek capital letter xi | bboldx | — |
| [\\txtbbzeta](https://texform.dev/latex/symbols/txtbbzeta) | symbol | ζ U+03B6 greek small letter zeta | bboldx | — |
| [\\txtbfbbalpha](https://texform.dev/latex/symbols/txtbfbbalpha) | symbol | α U+03B1 greek small letter alpha | bboldx | — |
| [\\txtbfbbbeta](https://texform.dev/latex/symbols/txtbfbbbeta) | symbol | β U+03B2 greek small letter beta | bboldx | — |
| [\\txtbfbbchi](https://texform.dev/latex/symbols/txtbfbbchi) | symbol | χ U+03C7 greek small letter chi | bboldx | — |
| [\\txtbfbbdelta](https://texform.dev/latex/symbols/txtbfbbdelta) | symbol | δ U+03B4 greek small letter delta | bboldx | — |
| [\\txtbfbbDelta](https://texform.dev/latex/symbols/txtbfbbDelta) | symbol | ∆ U+2206 increment | bboldx | — |
| [\\txtbfbbdotlessi](https://texform.dev/latex/symbols/txtbfbbdotlessi) | symbol | ı U+0131 latin small letter dotless i | bboldx | — |
| [\\txtbfbbdotlessj](https://texform.dev/latex/symbols/txtbfbbdotlessj) | symbol | ȷ U+0237 latin small letter dotless j | bboldx | — |
| [\\txtbfbbepsilon](https://texform.dev/latex/symbols/txtbfbbepsilon) | symbol | ε U+03B5 greek small letter epsilon | bboldx | — |
| [\\txtbfbbeta](https://texform.dev/latex/symbols/txtbfbbeta) | symbol | η U+03B7 greek small letter eta | bboldx | — |
| [\\txtbfbbgamma](https://texform.dev/latex/symbols/txtbfbbgamma) | symbol | γ U+03B3 greek small letter gamma | bboldx | — |
| [\\txtbfbbGamma](https://texform.dev/latex/symbols/txtbfbbGamma) | symbol | Γ U+0393 greek capital letter gamma | bboldx | — |
| [\\txtbfbbiota](https://texform.dev/latex/symbols/txtbfbbiota) | symbol | ι U+03B9 greek small letter iota | bboldx | — |
| [\\txtbfbbkappa](https://texform.dev/latex/symbols/txtbfbbkappa) | symbol | κ U+03BA greek small letter kappa | bboldx | — |
| [\\txtbfbblambda](https://texform.dev/latex/symbols/txtbfbblambda) | symbol | λ U+03BB greek small letter lamda | bboldx | — |
| [\\txtbfbbLambda](https://texform.dev/latex/symbols/txtbfbbLambda) | symbol | Λ U+039B greek capital letter lamda | bboldx | — |
| [\\txtbfbbLangle](https://texform.dev/latex/symbols/txtbfbbLangle) | symbol | 〈 U+2329 left-pointing angle bracket | bboldx | — |
| [\\txtbfbbLbrack](https://texform.dev/latex/symbols/txtbfbbLbrack) | symbol | [ U+005B left square bracket | bboldx | — |
| [\\txtbfbbLparen](https://texform.dev/latex/symbols/txtbfbbLparen) | symbol | ( U+0028 left parenthesis | bboldx | — |
| [\\txtbfbbmu](https://texform.dev/latex/symbols/txtbfbbmu) | symbol | µ U+00B5 micro sign | bboldx | — |
| [\\txtbfbbnu](https://texform.dev/latex/symbols/txtbfbbnu) | symbol | ν U+03BD greek small letter nu | bboldx | — |
| [\\txtbfbbomega](https://texform.dev/latex/symbols/txtbfbbomega) | symbol | ω U+03C9 greek small letter omega | bboldx | — |
| [\\txtbfbbOmega](https://texform.dev/latex/symbols/txtbfbbOmega) | symbol | Ω U+2126 ohm sign | bboldx | — |
| [\\txtbfbbphi](https://texform.dev/latex/symbols/txtbfbbphi) | symbol | φ U+03C6 greek small letter phi | bboldx | — |
| [\\txtbfbbPhi](https://texform.dev/latex/symbols/txtbfbbPhi) | symbol | Φ U+03A6 greek capital letter phi | bboldx | — |
| [\\txtbfbbpi](https://texform.dev/latex/symbols/txtbfbbpi) | symbol | π U+03C0 greek small letter pi | bboldx | — |
| [\\txtbfbbPi](https://texform.dev/latex/symbols/txtbfbbPi) | symbol | Π U+03A0 greek capital letter pi | bboldx | — |
| [\\txtbfbbpsi](https://texform.dev/latex/symbols/txtbfbbpsi) | symbol | ψ U+03C8 greek small letter psi | bboldx | — |
| [\\txtbfbbPsi](https://texform.dev/latex/symbols/txtbfbbPsi) | symbol | Ψ U+03A8 greek capital letter psi | bboldx | — |
| [\\txtbfbbRangle](https://texform.dev/latex/symbols/txtbfbbRangle) | symbol | 〉 U+232A right-pointing angle bracket | bboldx | — |
| [\\txtbfbbRbrack](https://texform.dev/latex/symbols/txtbfbbRbrack) | symbol | ] U+005D right square bracket | bboldx | — |
| [\\txtbfbbrho](https://texform.dev/latex/symbols/txtbfbbrho) | symbol | ρ U+03C1 greek small letter rho | bboldx | — |
| [\\txtbfbbRparen](https://texform.dev/latex/symbols/txtbfbbRparen) | symbol | ) U+0029 right parenthesis | bboldx | — |
| [\\txtbfbbsigma](https://texform.dev/latex/symbols/txtbfbbsigma) | symbol | σ U+03C3 greek small letter sigma | bboldx | — |
| [\\txtbfbbSigma](https://texform.dev/latex/symbols/txtbfbbSigma) | symbol | Σ U+03A3 greek capital letter sigma | bboldx | — |
| [\\txtbfbbtau](https://texform.dev/latex/symbols/txtbfbbtau) | symbol | τ U+03C4 greek small letter tau | bboldx | — |
| [\\txtbfbbtheta](https://texform.dev/latex/symbols/txtbfbbtheta) | symbol | θ U+03B8 greek small letter theta | bboldx | — |
| [\\txtbfbbTheta](https://texform.dev/latex/symbols/txtbfbbTheta) | symbol | Θ U+0398 greek capital letter theta | bboldx | — |
| [\\txtbfbbupsilon](https://texform.dev/latex/symbols/txtbfbbupsilon) | symbol | υ U+03C5 greek small letter upsilon | bboldx | — |
| [\\txtbfbbUpsilon](https://texform.dev/latex/symbols/txtbfbbUpsilon) | symbol | Υ U+03A5 greek capital letter upsilon | bboldx | — |
| [\\txtbfbbxi](https://texform.dev/latex/symbols/txtbfbbxi) | symbol | ξ U+03BE greek small letter xi | bboldx | — |
| [\\txtbfbbXi](https://texform.dev/latex/symbols/txtbfbbXi) | symbol | Ξ U+039E greek capital letter xi | bboldx | — |
| [\\txtbfbbzeta](https://texform.dev/latex/symbols/txtbfbbzeta) | symbol | ζ U+03B6 greek small letter zeta | bboldx | — |