What is “qd” Package?

C++/Fortran-90 double-double and quad-double package
For more details: https://crd.lbl.gov/~dhbailey/mpdist/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install qd.

  brew install qd

Now, use qd!