toRRi -- construct an interval

Synopsis

Usage:

I = toRRi(n)

I = toRRi(l,r)

I = toRRi(prec,l,r)
Inputs:
- n, a number,
- l, a number,
- r, a number,
- prec, an integer,
Outputs:
- I, a real interval,

Description

Returns an interval as small as possible containing n or from l to r. Note that if l is to the right of r, the constructed interval is empty. This is a more low-level function and interval or span should be used instead.

For the programmer

The object toRRi is a compiled function.

toRRi -- construct an interval

Synopsis

Description

See also

For the programmer