A few MathML examples made by FriCAS

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Note:

The equation displayed here is powered by MathJax

FriCAS can output MathML if do (1) -> )set output mathml on.

(4 x^{2} - 12 x + 9) y^{2} + (4 x^{2} - 12 x + 9) y + 28 x^{2} - 84 x + 63

The result of expression (3) -> sqrt(12+32*1/39):

\frac{10 \sqrt{5}}{\sqrt{39}}

And matrix example:

[\begin{matrix} x + ⅈ & 0 \\ 1 & - 2 \end{matrix}]