noun
theta function
A special function in mathematics, often used in number theory, complex analysis, and physics.
テータ関数は、リーマンゼータ関数と深い関係がある。
The theta function is deeply related to the Riemann zeta function.
Standard Japanese spelling for the theta function in mathematics.
Uses the Greek letter theta; common in mathematical contexts.
From English 'theta function', where 'theta' is the Greek letter Θ.