Broken Square Root Symbol With Concrete Math Font

Questions
1

Anyone using Typst with Concrete Math font? I face a issue, and I am not sure whether it is Typst’s the font’s fault.

$ min_theta sqrt(1 / n sum_(i = 1)^n (sans("out")_i - sum_(j = 1)^d theta_j sans("feat")_(i j) - theta_0)^2) $

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In math block, if the content inside the sqrt gets tall enough, the square root symbol becomes broken. The default New Computer Modern Math works fine though.

2

Based on Fix bugs in math glyph assembly code by mkorje · Pull Request #5288 · typst/typst · GitHub this is a font bug

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3

I’ve sent an email to the author of the font regarding this issue and how it could be fixed. I’ll add an update here once I get a response.

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4

A new version (0.64) of the font has been released which includes a fix for this! It is already on CTAN.

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