Text query example:

• Pythagorean theorem
  Pythagorean theorem

TeX query example:

• $x^2+y^2$
  $x^2+y^2$

Mixed query example:

• Pythagorean theorem $a^2+b^2=c^2$
  Pythagorean theorem $a^2 + b^2 = c^2$

MathML query example:

• $x^{4+y}$ <math> <msup> <mi>x</mi> <mrow> <mn>4</mn> <mo>+</mo> <mi>y</mi> </mrow> </msup> </math>

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