Mnumber-class: Class "Mnumber" and "mNumber" of "mpfr" and regular numbers...

In Rmpfr: Interface R to MPFR - Multiple Precision Floating-Point Reliable

Class "Mnumber" and "mNumber" of "mpfr" and regular numbers and arrays from them

Description

Classes "Mnumber" "mNumber" are class unions of "mpfr" and regular numbers and arrays from them.
Its purpose is for method dispatch, notably defining a cbind(...) method where ... contains objects of one of the member classes of "Mnumber".

Classes "mNumber" is considerably smaller is it does not contain "matrix" and "array" since these also extend "character" which is not really desirable for generalized numbers. It extends the simple "numericVector" class by mpfr* classes.

Methods

%*%

signature(x = "mpfrMatrix", y = "Mnumber"): ...

crossprod

signature(x = "mpfr", y = "Mnumber"): ...

tcrossprod

signature(x = "Mnumber", y = "mpfr"): ...

etc. These are documented with the classes mpfr and or mpfrMatrix.

See Also

the array_or_vector sub class; cbind-methods.

Examples

## "Mnumber" encompasses (i.e., "extends") quite a few
##  "vector / array - like" classes:
showClass("Mnumber")
stopifnot(extends("mpfrMatrix", "Mnumber"),
          extends("array",      "Mnumber"))

Mnsub <- names(getClass("Mnumber")@subclasses)
(mNsub <- names(getClass("mNumber")@subclasses))
## mNumber has *one* subclass which is not in Mnumber:
setdiff(mNsub, Mnsub)# namely "numericVector"
## The following are only subclasses of "Mnumber", but not of "mNumber":
setdiff(Mnsub, mNsub)

Rmpfr documentation built on Nov. 18, 2024, 3:01 p.m.