Documentation

cancelElement
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Displays a diagonal line over a part of an equation.

This is commonly used to show the elimination of a term.

Example

Here, we can simplify:
$ (a dot b dot cancel(x)) /
    cancel(x) $
Preview

Parameters
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body
content
RequiredPositional
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The content over which the line should be placed.

length
relative
Settable
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The length of the line, relative to the length of the diagonal spanning the whole element being "cancelled". A value of 100% would then have the line span precisely the element's diagonal.

Default: 100% + 3pt

View example
$ a + cancel(x, length: #200%)
    - cancel(x, length: #200%) $
Preview

inverted
bool
Settable
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Whether the cancel line should be inverted (flipped along the y-axis). For the default angle setting, inverted means the cancel line points to the top left instead of top right.

Default: false

View example
$ (a cancel((b + c), inverted: #true)) /
    cancel(b + c, inverted: #true) $
Preview

cross
bool
Settable
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Whether two opposing cancel lines should be drawn, forming a cross over the element. Overrides inverted.

Default: false

View example
$ cancel(Pi, cross: #true) $
Preview

angle
auto or angle or function
Settable
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How much to rotate the cancel line.

Default: auto

View example
$ cancel(Pi)
  cancel(Pi, angle: #0deg)
  cancel(Pi, angle: #45deg)
  cancel(Pi, angle: #90deg)
  cancel(1/(1+x), angle: #(a => a + 45deg))
  cancel(1/(1+x), angle: #(a => a + 90deg)) $
Preview

stroke
length or color or gradient or stroke or pattern or dictionary
Settable
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How to stroke the cancel line.

Default: 0.5pt

View example
$ cancel(
  sum x,
  stroke: #(
    paint: red,
    thickness: 1.5pt,
    dash: "dashed",
  ),
) $
Preview