The GITLAB Project toolbar contains an icon for downloading a compressed copy of the archive.
First click the "Project" tab under the gitlab icon. Then look for:
Click this icon and select the form of download suitable for your computer. Unpack the files in a place of your choosing.
Clone the archive in a directory on your computer.
GRTensorIII is provided as Maple package in the /lib directory of the project. This lib directory needs to be included in your Maple library path.
This can be accomplished in a Maple session with the command:
libname := libname,"/User/peter/maple/grtensor/lib";
Alternately, this command can be placed in the .mapleinit file in the home directory on your computer.
With the library path established, GRTensorIII can be loaded via:
And the output will be:
"Copyright 2016, Peter Musgrave, Denis Pollney, Kayll Lake"
[autoalias, gralter, grcalc, grcalcalter, grcomponent, grdebug,
grdef, grdisplay, grinit, grload, grloaddef, grmap, groptions,
grsavedef, grtestinput, makeg, nptetrad, qload]
It is then useful to ensure you have a suitable path set for loading and saving metrics. This is controlled by the global variable grOptionMetricPath.
This can also be configured by assignment in the Maple session or set in your .mapleinit file.