θ is a Greek letter and θ is a symbol in mathematics, which is often used to represent angles.

0 & ltθ& lt； When π/4, both sinθ and tanθ are greater than 0, while tanθ=sinθ/cosθ, cos θ < 1, so sinθ.

The lowercase theta is:

In mathematics, it usually represents the angle of a plane.

Silent tooth fricative sound in international phonetic alphabet.

Cyrillic? It's from Sita.

It is also a symbol of Earth Day. In English, θ belongs to the fricative sound in consonants.

Extended data:

Greek alphabet reading:

α α: α α

ββ:ββ

γγ:γγ

δ δ: δ Delta

εε:εε

ζ ζ: Jetta Zeta

ε η: Itaeta

θ θ: West Tower θ

ι ι: Aiota Iota

κ κ κ: kappa kappa kappa

∧λ:λλλλ

Baidu Encyclopedia-θ