linalg:acos

(linalg:acos array)

Returns a fresh array of the same shape with the arc cosine applied to every element (numpy's np.arccos) -- equivalent to (linalg:emap #'acos array), but as a named function it is accelerated under --simd. Like acos itself, the WASM backends compute it with a software approximation whose low-order digits can differ from the interpreter's and the JVM's.