Intervals

Constructor of all kind of intervals: left parenthesis a comma b right parenthesis comma space left square bracket a comma b right parenthesis comma space left parenthesis a comma b right square bracket comma space left square bracket a comma b right square bracket.

interval_open_open(Real, Real)

Given two reals a and b, constructs the interval left parenthesis a comma b right parenthesis.

interval_open_close(Real, Real)

Given two reals a and b, constructs the interval left parenthesis a comma b right square bracket.

interval_close_open(Real, Real)

Given two reals a and b, constructs the interval left square bracket a comma b right parenthesis.

interval_close_close(Real, Real)

Given two reals a and b, constructs the interval left square bracket a comma b right square bracket.