Correction of a typo: > So, the function f: R*n --> R where for each x f(x) should read So, the function f: R^n --> R where for each x f(x) Excuse: Just no

Correction of a typo: > So, the function f: R*n --> R where for each x f(x) should read So, the function f: R^n --> R where for each x f(x) Excuse: Just now I'm using a keyboard on a laptop, and I'm not used to the keyboard yet.