- Inheritance
Precision is a mixin for concrete numeric classes with precision. Here, `precision’ means the fineness of approximation of a real number, so, this module should not be included into anything which is not a subset of Real (so it should not be included in classes such as Complex or Matrix).
Methods
Class
| Visibility | Signature |
|---|---|
| public | included (p1) |
Instance
| Visibility | Signature |
|---|---|
| public | prec (p1) |
| public | prec_f () |
| public | prec_i () |
Class Method Detail
included(p1)
call_seq:
included
When the Precision module is mixed-in to a class, this included method is used to add our default induced_from implementation to the host class.
Instance Method Detail
num.prec(klass) => a_klass
Converts self into an instance of klass. By default, prec invokes
klass.induced_from(num)
and returns its value. So, if klass.induced_from doesn‘t return an instance of klass, it will be necessary to reimplement prec.