Mimics tikz's latex arrowheads, but can make any arrowhead with 2 side curves and an underside.

## Arguments

- point
length-2 vector for point coordinates

- sidecontrols
vector of coordinates for control points on sides

- p_barb
length-2 vector for barb coordinates

- undercontrols
vector of coordinates for control points on underside

- rotate
rotation angle in radians

- rescale
a single value or 2-length vector for scaling in x and y

- nudge
a single value or 2-length vector for nudging in x and y

- transformations
a vector of transformation functions

- n
number of points in polygon

- plot
plot arrowhead if TRUE

## Examples

```
latex_prime <- arrow_head_latex(plot = TRUE)
latex_prime_spaced <-
arrow_head_latex(nudge = c(.45, 0),
rescale = .55,
plot = TRUE)
latex_regular <- arrow_head_latex(undercontrols = NULL, plot = TRUE)
latex_flat <- arrow_head_latex(sidecontrols = NULL, plot = TRUE)
latex_pincer <- arrow_head_latex(
sidecontrols = c(-.5,1, -.5, 2),
undercontrols = c(.2,1.5),
p_barb = c(-1,.5),
nudge = c(.35,0),
rescale = c(.65,.4),
plot = TRUE)
```