Add math functions back to the prelude (#6595)

* Add math functions back to the prelude

* Update output

* Update docs

rust/kcl-lib/src/std/patterns.rs

@@ -202,7 +202,7 @@ pub async fn pattern_transform_2d(exec_state: &mut ExecState, args: Args) -> Res
 /// // Defines how to modify each layer of the vase.
 /// // Each replica is shifted up the Z axis, and has a smoothly-varying radius
 /// fn transform(replicaId) {
-///   scale = r * math::abs(1 - (t * replicaId)) * (5 + math::cos((replicaId / 8): number(rad)))
+///   scale = r * abs(1 - (t * replicaId)) * (5 + cos((replicaId / 8): number(rad)))
 ///   return {
 ///     translate = [0, 0, replicaId * 10],
 ///     scale = [scale, scale, 0],