\varthetaThe symbol \vartheta is a variant of the Greek letter theta (θ). It is often used in mathematical contexts, particularly in trigonometry and calculus, to represent angles or angular variables. In some contexts, it can also be used to denote a specific function or parameter, depending on the field of study.
A variant of theta used in trigonometric equations.
\vartheta = \frac{1}{2} \thetaUsing \vartheta as an upper limit in an integral.
\int_0^{\vartheta} \sin(x) \, dxFunction of \vartheta involving trigonometric functions.
f(\vartheta) = \cos(\vartheta) + \sin(\vartheta)