Knot Tying Notation, Dictionary
Peter Suber

Last revised July 28, 2004

Directions, lines, and planes

• F, A, L, R, U, D: Fore, Aft, Left, Right, Up, Down
• CW, CCW: Clockwise, Counter-clockwise
• FA, LF, UD: ForeAft, LeftRight, UpDown
• HP, VP, EP: HorizontalPlane, VerticalPlane, EdgePlane

Nouns for parts of the cord

• BT: Bight
• C, CS: Cord, CordSegment
• CR: Crossing
• E: End
• EY: Eye
• K: Knot
• LE: LinkEye
• LP: Loop
• RP, SP: RunningPart, StandingPart
• SD: Side
• ST: Site
• T: Turn
• u (lower-case): unit (one cord diameter)

Nouns for parts of the tyer's hands

• LF, RF: LefthandFinger, RighthandFinger
• We number the fingers on each hand starting the with the thumb as #1. Hence, LF.1 is the left thumb. LF.2 is the left forefinger. RF.5 is the right pinky, and so on.
• LH, RH: LeftHand, RightHand

Verbs

• Do: Do
• GP(x, y): Grip x with y
• MB(x): MakeBight with cord segment x
• ML(x): MakeLoop with cord segment x
• MT(x, y): MakeTurn with x around y in the direction indicated by the modifier on y
• MV(x): Move x in the direction, distance, manner indicated by modifiers on y (^..., push, ...^, pull)
• PT: Point
• RV(x, y): Reeve x through y
• TW(x): Twist x along its own axis in the direction indicated by the modifier on x

Descriptors

• BN(x, y, z): Between, x is between y and z
• CO(x, y): CrossOver, x crosses over y
• Directions: R(x, y), x lies to the right of y, etc.
• LG(x): Length of x is the number of units indicated by the modifier on x
• LN(x): Line, x lies on the line indicated in the modifier on x
• NM(x): Name, x has the name indicated after the "=" symbol
• NX(x, y): Next, x is next to y in the direction indicated in the modifier on y
• OL(x, y): Overlay, x overlays x
• PL(x, y): Parallel, x is parallel to y
• PN(x): Plane, x lies in the plane indicated by the modifier on x
• PT(x): Point, x points in the direction indicated by the modifier on x
• RV(x, y): Reeve (see verb)
• RS(x): Results, x results from the previous action
• TT(x): Tight, the knot or cord should have x degree of tightness (t, tt, ttt)

List of special symbols

*   operator introducing new stages
=   operator introducing names
.   operator introducing "which one" modifiers
:   operator introducing "how" modifiers
^   push-pull operator
-   from...to operator
®   until operator
~   negation operator
>   greater than operator
<   less than operator
\   symbol for "S" or right-handed loop
/   symbol for "Z" or left-handed loop
,   delimiter for list items (separating sentences within a stage and parameters within a cluster or sentence)
(...)  markers for beginning and end of parameter lists
[...]  markers for beginning and end of cluster lists

Return to the notation home page.

The right arrow ("until" operator) uses the Symbol Font, which is installed by default on most but not all computers. See Alan Wood's guide to its symbols.

Peter Suber, Department of Philosophy, Earlham College, Richmond, Indiana, 47374, U.S.A.
peters@earlham.edu.   Copyright © 2002-2004, Peter Suber.