blosc2.cos# blosc2.cos(ndarr: NDArray | NDField | C2Array | LazyExpr, /)# Trigonometric cosine, element-wise. Parameters: ndarr¶ (NDArray or NDField or C2Array or LazyExpr) – Angle, in radians. Returns: out – A lazy expression that can be evaluated. Return type: LazyExpr References np.cos