Receiving and evaluating generalized input

Generalized input for use in a computing environment. The generalized input can include freely mixed input types. The generalized input is received via a user interface. Each expression can include multiple types of input that can be processed as peers, without translation from one input type to another input type prior to parsing. The generalized input can include textual, numerical, graphical, and symbolic input as part an expression. The input can also include programs, scripts, methods, procedures, and the like or any combination thereof.