Why does cetz-plot.plot show only one function?

Questions
1

My code is below.

I would like for it to show both the y=x^2 function and the y=sqrt(x) function.

However it is only showing one.

Is there something I need to add.


#import "@preview/cetz:0.3.4"
#import "@preview/cetz-plot:0.1.1"

#cetz.canvas({

  import cetz.draw: *
  import cetz-plot: *
  plot.plot(
    size: (5,5),
    x-tick-step:1,
    y-tick-step:5,
    axis-style: "school-book",

    plot.add(
     domain: (0,5),
      x=>calc.pow(x,2), 
  ),

    plot.add(
      domain: (0,5),
      x=>calc.root(x,2)  
    )
  )
 
})

Also, after the 2 functions have been shown, is there a way to return the point of intersection?

Thanks.

2

First of all, you can format your code on the forum in a code block:

``​`typ
your code
``​`

Regarding your issue, you have to wrap both plot.add calls in curly braces. This is because the function plot.add actually returns an array of draw functions. By wrapping them in braces, it joins the arrays into one

This should work:

#import "@preview/cetz:0.3.4"
#import "@preview/cetz-plot:0.1.1"

#cetz.canvas({
  import cetz.draw: *
  import cetz-plot: *
  plot.plot(
    size: (5,5),
    x-tick-step:1,
    y-tick-step:5,
    axis-style: "school-book",
    {
      plot.add(
       domain: (0,5),
        x=>calc.pow(x,2), 
      )
      plot.add(
        domain: (0,5),
        x=>calc.root(x,2)  
      )
    }
  )
})

For the intersection, I think the easiest is to compute it beforehand and plot it manually
EDIT: You might want to check this other post: Is it possible to calculate intersection points between two cetz plots?

2 Likes
3

Thank you. That works well.