How to MATHCAD 15 Install on imac

There is no native Mac version of Mathcad.

If your license allows you to install Mathcad on more than one machine, you may run it on a Mac basically in three different ways (like any Windows software):

1) Dual Boot Configuation: Use Boot Camp to install Windows alongside macOS (you'll need a Windows license to do so)

2) Virtual Machine (Parallels desktop, VMWare, Virtual Box, Citrix,...): Run Windows and Mathcad in a virtual machine (again you'll need a Win license). If your Windows machine still is alive you may even turn it into a VM and run that on the Mac (this will not work with parallels desktop AFAIK).

3) Use a Windows emulator like WINE or CrossOver Mac. You don't need a windows license but the emulators are far away from being perfect. No guarantee that a specific Win software will run flawless in the emulator. Furthermore PTC will not provide any support for running their software in an emulator (but losing PTC's support is not a big loss anyway).

If possible I would go for a virtual machine. IMHO It provides a good balance between reliability and comfort.

Having to reboot just to be able to use a specific software as in a dual boot config can be annoying and using an emulator is not that reliable as I would wish it to be (though I have no personal experience in using Mathcad with a windows emulator).

Maybe we have some Mac users here in the forum who have personal experience and give some further advice.