http://extabit.com/file/27aufgc7uhu5o/PTC.MATHCAD.PRIME.V2.0.ISO-LZ0.part1.rar
http://extabit.com/file/27aufgc7uhu64/PTC.MATHCAD.PRIME.V2.0.ISO-LZ0.part2.rar
http://extabit.com/file/27aufgc7uhu30/PTC.MATHCAD.PRIME.V2.0.ISO-LZ0.part3.rar