1. 2012-05-01 Re: [R] Area between 2 curves r-help sappy 2. 2012-04-30 Re: [R] Area between 2 curves r-help Keith Jewell 3. 2012-04-30 Re: [R] Area between 2 curves r-help R. Michael Weyland 4. 2012-04-30 [R] Area between 2 curves r-help sappy