Assertion: function | /r/HasProperty | useful
Facets:
value: often
type: DEGREE
value: in practice
type: OTHER
value: to see the codomain
type: PURPOSE
value: in solving wave equations
type: OTHER
value: in applications
type: LOCATION
Source sentences:
text: These functions are particularly useful in applications, for example modeling physical properties.
text: Green's functions are also useful tools in solving wave equations and diffusion equations.
text: The NOW function is useful when you need to display the current date and time on a worksheet or calculate a value based on the current date and time, and have that value updated each time you open the worksheet.
text: However, it is often useful to see functions as mappings, which consist not only of the relation between input and output, but also which set is the domain, and which set is the codomain.
text: In practice, such functions are quite useful.