| package drawer | |
| // START OMIT | |
| import "image" | |
| // Function represent a drawable mathematical function. | |
| type Function interface { | |
| Eval(float64) float64 | |
| } | |
| // Draw draws an image showing a rendering of the passed Function. | |
| func Draw(f Function) image.Image { | |
| // END OMIT | |
| return nil | |
| } |