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Dave Keenan & Douglas Blumeyer's guide to RTT/Conventions for names, variables, units, and notations: Difference between revisions

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Line 4,207: Line 4,207:
|-
|-
! scope="col" width="130px" | Compose-key sequence
! scope="col" width="130px" | Compose-key sequence
! scope="col" width="75px" | resulting text
! scope="col" width="75px" | Resulting text
! description
! Description
|-
|-
! colspan="3" rowspan="1" | Keyboard key symbols
! colspan="3" rowspan="1" | Keyboard key symbols
Line 4,214: Line 4,214:
| ⎄⎄⎄
| ⎄⎄⎄
| ⎄
| ⎄
| compose key symbol (the right alt key by default)
| Compose key symbol (the right alt key by default)
|-
|-
| ⎄\␣
| ⎄\␣
| ␣
| ␣
| spacebar symbol
| Spacebar symbol
|-
|-
| ⎄\▶︎ etc.
| ⎄\▶︎ etc.
| ▶︎ etc.
| ▶︎ etc.
| right etc. arrow key symbols
| Right etc. arrow key symbols
|-
|-
| ⎄\A or ⎄\O
| ⎄\A or ⎄\O
| ⌥
| ⌥
| alt or option key symbol
| Alt or option key symbol
|-
|-
| ⎄\B
| ⎄\B
| ⌫
| ⌫
| backspace key symbol
| Backspace key symbol
|-
|-
| ⎄\C
| ⎄\C
| ✲
| ✲
| control key symbol
| Control key symbol
|-
|-
| ⎄\D
| ⎄\D
| ⌦
| ⌦
| delete key symbol
| Delete key symbol
|-
|-
| ⎄\E
| ⎄\E
| ⎋
| ⎋
| escape key symbol
| Escape key symbol
|-
|-
| ⎄\L
| ⎄\L
| ⇪
| ⇪
| caps lock key symbol
| Caps lock key symbol
|-
|-
| ⎄\R or ⎄\.E
| ⎄\R or ⎄\.E
| ⏎
| ⏎
| return or enter key symbol
| Return or enter key symbol
|-
|-
| ⎄\S
| ⎄\S
| ⇧
| ⇧
| shift key symbol
| Shift key symbol
|-
|-
| ⎄\T
| ⎄\T
| ⭾
| ⭾
| tab key symbol
| Tab key symbol
|-
|-
| ⎄()
| ⎄()
| ◌
| ◌
| dotted circle, represents any character (such as the character preceding a combining mark)
| Dotted circle, represents any character (such as the character preceding a combining mark)
|-
|-
! colspan="3" rowspan="1" | Double key sequences
! colspan="3" rowspan="1" | Double key sequences
Line 4,268: Line 4,268:
| ⎄␣␣
| ⎄␣␣
|  
|  
| narrow no-break space (used between quantities and their units)
| Narrow no-break space (used between quantities and their units)
|-
|-
| ⎄..
| ⎄..
| ·
| ·
| middle dot (used to multiply units when juxtaposition is ambiguous)
| Middle dot (used to multiply units when juxtaposition is ambiguous)
|-
|-
| ⎄::
| ⎄::
| ÷
| ÷
| divide sign
| Divide sign
|-
|-
| ⎄;;
| ⎄;;
| ◌̲̅
| ◌̲̅
| combining overline and low line (undirected value)
| Combining overline and low line (undirected value)
|-
|-
| <nowiki>⎄| | </nowiki>
| ⎄{{pipe}} {{pipe}}
| ‖
| ‖
| power norm bracket
| Power norm bracket
|-
|-
| ⎄<<
| ⎄<<
| ⟨
| ⟨
| left angle bracket
| Left angle bracket
|-
|-
| ⎄>>
| ⎄>>
| ⟩
| ⟩
| right angle bracket
| Right angle bracket
|-
|-
| ⎄~~
| ⎄~~
| ≈
| ≈
| approximately equal
| Approximately equal
|-
|-
| ⎄**
| ⎄**
| ★
| ★
| black star
| Black star
|-
|-
| ⎄<nowiki>''</nowiki>
| ⎄{{''}}
| ′
| ′
| prime mark
| prime mark
Line 4,308: Line 4,308:
| ⎄11
| ⎄11
| ⁻¹
| ⁻¹
| power of -1 or inverse
| Power of &minus;1 or inverse
|-
|-
| ⎄22 through ⎄77
| ⎄22 through ⎄77
| ² ³ ⁴ ⁵ ⁶ ⁷
| ² ³ ⁴ ⁵ ⁶ ⁷
| squared, cubed, fourth through seventh power
| Squared, cubed, fourth through seventh power
|-
|-
| ⎄88
| ⎄88
| ∞
| ∞
| infinity
| Infinity
|-
|-
| ⎄00
| ⎄00
| °
| °
| degree sign
| Degree sign
|-
|-
| ⎄nn
| ⎄nn
| ⁿ
| ⁿ
| superscript small n
| Superscript small n
|-
|-
| ⎄--
| ⎄--
| ₋
| ₋
| subscript minus sign
| Subscript minus sign
|-
|-
| ⎄__
| ⎄__
| ◌̲
| ◌̲
| combining low line (underline)
| Combining low line (underline)
|-
|-
| ⎄==
| ⎄==
| ≡
| ≡
| modular congruence
| Modular congruence
|-
|-
| ⎄//
| ⎄//
| ⁄
| ⁄
| fraction slash (use with super and subscripts to create fractions)
| Fraction slash (use with super and subscripts to create fractions)
|-
|-
| ⎄##
| ⎄##
| ♯
| ♯
| musical sharp
| Musical sharp
|-
|-
| ⎄bb
| ⎄bb
| ♭
| ♭
| musical flat
| Musical flat
|-
|-
| ⎄dd
| ⎄dd
| ∂
| ∂
| partial derivative
| Partial derivative
|-
|-
| ⎄ff
| ⎄ff
| ϕ
| ϕ
| small phi symbol
| Small phi symbol
|-
|-
| ⎄gg
| ⎄gg
| ɡ
| ɡ
| single-storey (opentail) small g
| Single-storey (opentail) small g
|-
|-
| ⎄ll
| ⎄ll
| ℓ
| ℓ
| script small L
| Script small L
|-
|-
| ⎄uu
| ⎄uu
| µ
| µ
| micro sign
| Micro sign
|-
|-
| ⎄xx
| ⎄xx
| ×
| ×
| multiplication sign
| Multiplication sign
|-
|-
| ⎄DD
| ⎄DD
| ∆
| ∆
| delta (small difference) operator
| Delta (small difference) operator
|-
|-
| ⎄FF
| ⎄FF
Line 4,388: Line 4,388:
| ⎄TT
| ⎄TT
| ᵀ
| ᵀ
| superscript capital T (matrix transpose)
| Superscript capital T (matrix transpose)
|-
|-
| ⎄++
| ⎄++
| ⁺
| ⁺
| superscript plus sign (matrix pseudoinverse)
| Superscript plus sign (matrix pseudoinverse)
|-
|-
| ⎄▶︎▶︎ etc.
| ⎄▶︎▶︎ etc.
| → etc.
| → etc.
| right etc. arrows
| Right etc. arrows
|-
|-
! colspan="3" rowspan="1" | Multiplication operators
! colspan="3" rowspan="1" | Multiplication operators
Line 4,402: Line 4,402:
| ⎄xx
| ⎄xx
| ×
| ×
| multiplication sign
| Multiplication sign
|-
|-
| ⎄Xx or ⎄xX
| ⎄Xx or ⎄xX
| ⨯
| ⨯
| vector or cross product (barely distinguishable from multiplication sign)
| Vector or cross product (barely distinguishable from multiplication sign)
|-
|-
| ⎄XX
| ⎄XX
| ✕
| ✕
| large multiplication sign (a better symbol for cross product)
| Large multiplication sign (a better symbol for cross product)
|-
|-
| ⎄x*
| ⎄x*
| ⋆
| ⋆
| star operator (prefix: tensor complement, Hodge)
| Star operator (prefix: tensor complement, Hodge)
|-
|-
| ⎄X*
| ⎄X*
| ∗
| ∗
| asterisk operator (infix: scalar product, Dorst)
| Asterisk operator (infix: scalar product, Dorst)
|-
|-
| ⎄x.
| ⎄x.
| ⋅
| ⋅
| dot (product) operator
| Dot (product) operator
|-
|-
| ⎄X.
| ⎄X.
| •
| •
| bullet (infix: fat dot product, Dorst)
| Bullet (infix: fat dot product, Dorst)
|-
|-
! colspan="3" rowspan="1" | Other operators
! colspan="3" rowspan="1" | Other operators
Line 4,432: Line 4,432:
| ⎄v/
| ⎄v/
| √
| √
| square root sign
| Square root sign
|-
|-
| ⎄3v/
| ⎄3v/
| ∛
| ∛
| cube root sign
| Cube root sign
|-
|-
| ⎄4v/
| ⎄4v/
| ∜
| ∜
| fourth root sign
| Fourth root sign
|-
|-
| ⎄-+
| ⎄-+
| ₊
| ₊
| subscript plus sign
| Subscript plus sign
|-
|-
| ⎄--
| ⎄--
| ₋
| ₋
| subscript minus sign
| Subscript minus sign
|-
|-
| ⎄-=
| ⎄-=
| ₌
| ₌
| subscript equals sign
| Subscript equals sign
|-
|-
| ⎄++
| ⎄++
| ⁺
| ⁺
| superscript plus sign (matrix pseudoinverse)
| Superscript plus sign (matrix pseudoinverse)
|-
|-
| ⎄+- or ⎄+=
| ⎄+- or ⎄+=
| ±
| ±
| plus or minus sign
| Plus or minus sign
|-
|-
| ⎄=+
| ⎄=+
| ∓
| ∓
| minus or plus sign
| Minus or plus sign
|-
|-
| ⎄=-
| ⎄=-
| −
| −
| minus sign
| Minus sign
|-
|-
| ⎄==
| ⎄==
| ≡
| ≡
| modular congruence
| Modular congruence
|-
|-
| ⎄/\
| ⎄/\
| ∧
| ∧
| logical AND, wedge product, progressive product
| Logical AND, wedge product, progressive product
|-
|-
| ⎄\/
| ⎄\/
| ∨
| ∨
| logical OR, vee product, regressive product
| Logical OR, vee product, regressive product
|-
|-
| ⎄⎄/\
| ⎄⎄/\
| ⋀
| ⋀
| larger logical AND, wedge product, progressive product
| Larger logical AND, wedge product, progressive product
|-
|-
| ⎄⎄\/
| ⎄⎄\/
| ⋁
| ⋁
| larger logical OR, vee product, regressive product
| Larger logical OR, vee product, regressive product
|-
|-
| <nowiki>⎄| _</nowiki>
| <nowiki>⎄| _</nowiki>
| ⌊
| ⌊
| left floor (infix: right contraction, Dorst)
| Left floor (infix: right contraction, Dorst)
|-
|-
| <nowiki>⎄_| </nowiki>
| <nowiki>⎄_| </nowiki>
| ⌋
| ⌋
| right floor (infix: left contraction, Dorst)
| Right floor (infix: left contraction, Dorst)
|-
|-
| <nowiki>⎄| ^</nowiki>
| <nowiki>⎄| ^</nowiki>
| ⌈
| ⌈
| left ceiling
| Left ceiling
|-
|-
| <nowiki>⎄^| </nowiki>
| <nowiki>⎄^| </nowiki>
| ⌉
| ⌉
| right ceiling
| Right ceiling
|-
|-
| ⎄'-
| ⎄'-
| ⨽
| ⨽
| righthand interior product
| Righthand interior product
|-
|-
| ⎄-'
| ⎄-'
| ⨼
| ⨼
| (lefthand) interior product
| (Left-hand) interior product
|-
|-
| ⎄-,
| ⎄-,
| ¬
| ¬
| not sign (prefix: multivector complement)
| Not sign (prefix: multivector complement)
|-
|-
| ⎄⎄<>
| ⎄⎄<>
| ⋄
| ⋄
| diamond operator (prefix: multivector dual)
| Diamond operator (prefix: multivector dual)
|-
|-
| ⎄(.)
| ⎄(.)
| ⨀
| ⨀
| entry-wise vector multiplication operator
| Entry-wise vector multiplication operator
|-
|-
| ⎄(..)
| ⎄(..)
| ⊙
| ⊙
| alternative entry-wise vector multiplication operator
| Alternative entry-wise vector multiplication operator
|-
|-
| ⎄(/)
| ⎄(/)
| ⊘
| ⊘
| entry-wise vector division operator
| Entry-wise vector division operator
|-
|-
! colspan="3" | Mathematical letter and digit prefixes
! colspan="3" | Mathematical letter and digit prefixes
Line 4,538: Line 4,538:
| ⎄3◌
| ⎄3◌
| я
| я
| cyrillic, ⎄3q is ya (example)
| Cyrillic, ⎄3q is ya (example)
|-
|-
| ⎄4◌
| ⎄4◌
| ℵ
| ℵ
| hebrew, ⎄4a is aleph (example)
| Hebrew, ⎄4a is aleph (example)
|-
|-
| ⎄5◌
| ⎄5◌
| 𝔞
| 𝔞
| fraktur, ⎄5a
| Fraktur, ⎄5a
|-
|-
| ⎄6◌
| ⎄6◌
| ᵃ ¹  ᪲  ⁸
| ᵃ ¹  ᪲  ⁸
| superscripts, ⎄6a ⎄61 ⎄688 ⎄68␣ (not all letters, some only approximate) (same key as ^ but without shift)
| Superscripts, ⎄6a ⎄61 ⎄688 ⎄68␣ (not all letters, some only approximate) (same key as ^ but without shift)
|-
|-
| ⎄68◌
| ⎄68◌
| ᵝ
| ᵝ
| superscript greek, ⎄68b is superscript beta (only a few)
| Superscript greek, ⎄68b is superscript beta (only a few)
|-
|-
| ⎄7◌
| ⎄7◌
| 𝒶
| 𝒶
| script, ⎄7a
| Script, ⎄7a
|-
|-
| ⎄8◌
| ⎄8◌
| α
| α
| greek, ⎄8a is alpha (by sound where possible otherwise letter-shape)
| Greek, ⎄8a is alpha (by sound where possible otherwise letter-shape)
|-
|-
| ⎄8.◌
| ⎄8.◌
| ς
| ς
| greek variants, ⎄8.s is final sigma
| Greek variants, ⎄8.s is final sigma
|-
|-
| ⎄9◌
| ⎄9◌
| 𝐚 𝟏 𝟓 𝟕 𝟖 𝟎
| 𝐚 𝟏 𝟓 𝟕 𝟖 𝟎
| bold, ⎄9a ⎄91 ⎄95␣ ⎄97␣ ⎄98␣ ⎄90␣
| Bold, ⎄9a ⎄91 ⎄95␣ ⎄97␣ ⎄98␣ ⎄90␣
|-
|-
| ⎄95◌
| ⎄95◌
| 𝖆
| 𝖆
| bold fraktur, ⎄95a
| Bold fraktur, ⎄95a
|-
|-
| ⎄97◌
| ⎄97◌
| 𝓪
| 𝓪
| bold script, ⎄97a
| Bold script, ⎄97a
|-
|-
| ⎄98◌
| ⎄98◌
| 𝛂
| 𝛂
| bold greek, ⎄98a is bold alpha
| Bold greek, ⎄98a is bold alpha
|-
|-
| ⎄90◌
| ⎄90◌
| 𝒂
| 𝒂
| bold italic, ⎄90a
| Bold italic, ⎄90a
|-
|-
| ⎄908◌
| ⎄908◌
| 𝜶
| 𝜶
| bold italic greek, ⎄908a is bold italic alpha
| Bold italic greek, ⎄908a is bold italic alpha
|-
|-
| ⎄0◌
| ⎄0◌
| 𝑎
| 𝑎
| italic, ⎄0a
| Italic, ⎄0a
|-
|-
| ⎄08◌
| ⎄08◌
| 𝛼
| 𝛼
| italic greek, ⎄08a is italic alpha
| Italic greek, ⎄08a is italic alpha
|-
|-
| ⎄-◌
| ⎄-◌
| ₐ ᴀ   ͚ ₈
| ₐ ᴀ   ͚ ₈
| subscripts and small caps, ⎄-a ⎄-A ⎄-88 ⎄-8␣ (not all letters, some only approximate) (same key as _ but without shift)
| Subscripts and small caps, ⎄-a ⎄-A ⎄-88 ⎄-8␣ (not all letters, some only approximate) (same key as _ but without shift)
|-
|-
| ⎄-8◌
| ⎄-8◌
| ᵦ
| ᵦ
| subscript greek, ⎄-8b is subscript beta (only a few)
| Subscript greek, ⎄-8b is subscript beta (only a few)
|-
|-
| ⎄{◌
| ⎄{◌
| 𝖺 𝟣 𝟫
| 𝖺 𝟣 𝟫
| sans-serif, ⎄{a ⎄{1 ⎄{9␣
| Sans-serif, ⎄{a ⎄{1 ⎄{9␣
|-
|-
| ⎄{9◌
| ⎄{9◌
| 𝗮 𝟭
| 𝗮 𝟭
| sans-serif bold, ⎄{9a ⎄{91
| Sans-serif bold, ⎄{9a ⎄{91
|-
|-
| ⎄}◌
| ⎄}◌
| 𝚊 𝟷
| 𝚊 𝟷
| monospace, ⎄}a ⎄}1
| Monospace, ⎄}a ⎄}1
|-
|-
| <nowiki>⎄| ◌</nowiki>
| ⎄{{pipe}} ◌
| 𝕒 𝟙 𝟠 𝟘
| 𝕒 𝟙 𝟠 𝟘
| <nowiki>double-struck, ⎄| a ⎄| 1 ⎄| 8␣ ⎄| 0␣</nowiki>
| Double-struck, ⎄{{pipe}} a ⎄{{pipe}} 1 ⎄{{pipe}} 8␣ ⎄{{pipe}} 0␣
|-
|-
| <nowiki>⎄| 8◌</nowiki>
| ⎄{{pipe}} 8◌
| ℼ
| ℼ
| <nowiki>double-struck greek, ⎄| 8p (only a few)</nowiki>
| Double-struck greek, ⎄{{pipe}} 8p (only a few)
|-
|-
| <nowiki>⎄| 0◌</nowiki>
| ⎄{{pipe}} 0◌
| ⅇ ⅈ
| ⅇ ⅈ
| <nowiki>double-struck italic, ⎄| 0e ⎄| i (only a few)</nowiki>
| Double-struck italic, ⎄{{pipe}} 0e ⎄{{pipe}} i (only a few)
|-
|-
! colspan="3" rowspan="1" | Power statistics brackets
! colspan="3" rowspan="1" | Power statistics brackets
|-
|-
| <nowiki>⎄| | </nowiki>
| ⎄{{pipe}} {{pipe}}
| ‖
| ‖
| power-norm bracket
| Power-norm bracket
|-
|-
| <nowiki>⎄|-1</nowiki>
| ⎄{{pipe}}-1
| ‖₁
| ‖₁
| 1-norm right bracket
| 1-Norm right bracket
|-
|-
| <nowiki>⎄|-2</nowiki>
| ⎄{{pipe}}-2
| ‖₂
| ‖₂
| 2-norm right bracket
| 2-Norm right bracket
|-
|-
| <nowiki>⎄|-8</nowiki>
| ⎄{{pipe}}-8
| ‖ ͚
| ‖ ͚
| ∞-norm right bracket
| ∞-Norm right bracket
|-
|-
| ⎄⎄<<
| ⎄⎄<<
| ⟪
| ⟪
| left power-mean bracket
| Left power-mean bracket
|-
|-
| ⎄⎄>>
| ⎄⎄>>
| ⟫
| ⟫
| right power-mean bracket
| Right power-mean bracket
|-
|-
| <nowiki>⎄⎄{{</nowiki>
| ⎄⎄{{((}}
| ⧛
| ⧛
| left power-sum bracket (substitute for {{llzigzag}} when HTML is not available)
| Left power-sum bracket (substitute for {{llzz}} when HTML is not available)
|-
|-
| <nowiki>⎄⎄}}</nowiki>
| ⎄⎄{{))}}
| ⧚
| ⧚
| right power-sum bracket (substitute for {{rrzigzag}} when HTML is not available)
| Right power-sum bracket (substitute for {{rrzz}} when HTML is not available)
|-
|-
! colspan="3" rowspan="1" | Combining marks
! colspan="3" rowspan="1" | Combining marks
Line 4,670: Line 4,670:
| ⎄\-
| ⎄\-
| ◌̶
| ◌̶
| combining strike-thru
| Combining strike-thru
|-
|-
| ⎄^_
| ⎄^_
| ◌̅
| ◌̅
| combining overline
| Combining overline
|-
|-
| ⎄__
| ⎄__
| ◌̲
| ◌̲
| combining low line
| Combining low line
|-
|-
| ⎄;; or ⎄-_ or ⎄_^
| ⎄;; or ⎄-_ or ⎄_^
| ◌̲̅
| ◌̲̅
| combining overline and low line (undirected value)
| Combining overline and low line (undirected value)
|}
|}


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