MathML

Inline <math> rendered as real vector PDF content - fraction bars, radical signs, and stretchy fences built from the font's own OpenType MATH table, never rasterized.

Quadratic formula
x=-b±b2-4ac2a
Pythagorean theorem
a2+b2=c2
2×2 identity matrix (stretchy fences)
(1001)
Binomial coefficient (nested scripts)
(nk)=n!k!(n-k)!