How to use different fonts for math mode and math.cal?

Questions
1

I want to use the TeX Gyre Pagella Math font for math mode, so I use the code

show math.equation: it => {
  set text(font: "TeX Gyre Pagella Math")
  set block(breakable: true)
  if it.block == false {
    box(it)
  } else {
    it
  }
}

Sometimes, I also want to use the New Computer Modern Math font for script letters in math mode, so I use the code

let scr(it) = math.class("normal", box({
  show math.equation: set text(font: "New Computer Modern Math", stylistic-set: 1)
  $#math.cal(it)$
}) + h(0pt))

(taken from here). But this command does not work, e.g.

scr(P)

displays TeX Gyre Pagella Math’s calligraphic font. What am I doing wrong?

2

For this, you need to know that there is a difference between using a show-set rule

#show math.equation: set text(font: "TeX Gyre Pagella Math")

and using a set rule inside a show rule

#show math.equation: it => {
  set text(font: "TeX Gyre Pagella Math")
  it
}

Only in the first case (the show-set rule), the font can be overridden by another rule. I have expanded a bit on that difference in How to change figure caption justification? - #5 by Eric.

To get your code working, you thus only need to rewrite your first show rule, such that the set rules are separated out into show-set rules. There, you could then also simplify the boxing of inline equations:

#show math.equation: set text(font: "TeX Gyre Pagella Math")
#show math.equation: set block(breakable: true)
#show math.equation.where(block: false): box
2 Likes
3

Perfect, thank you. I am deeply grateful. :smiley: