I've added the following solution to the Rosetta Code task: Function Composition
The new Mathcad entry is at https://rosettacode.org/wiki/Function_composition#Mathcad
This would be better implemented in Mathcad 15 or full Mathcad Prime (ideally a version before PTC removed partial application) - these versions would (should) allow a cleaner and more functional version of compose.
Stuart
