It's not homomorphic encryption: it's garbled circuits and oblivious transfer (order of magnitudes faster than homomorphic encryption, a cryptographic technique

It's not homomorphic encryption: it's garbled circuits and oblivious transfer (order of magnitudes faster than homomorphic encryption, a cryptographic technique with lots of publicity but it'll take some years before it's practical) supporting floating-point operations (there are no opensourced libraries with floating-point support).