When you press F1 or click the Help button 
in PTC Mathcad Prime 5.0.0.0, your internet browser opens to the Help on Ptc.com. This is the default. The PTC Mathcad Prime 5.0.0.0 Help on Ptc.com supports the copying and pasting of math into your worksheet. Having the Help on Ptc.com makes it easier to make updates outside of the release schedule. If you prefer, you can install the Help and access the Help locally.
in PTC Mathcad Prime 5.0.0.0, your internet browser opens to the Help on Ptc.com. This is the default. The PTC Mathcad Prime 5.0.0.0 Help on Ptc.com supports the copying and pasting of math into your worksheet. Having the Help on Ptc.com makes it easier to make updates outside of the release schedule. If you prefer, you can install the Help and access the Help locally.