I'm having trouble understanding a logical step in the answer given in the revision notes. There is a step where we say: lim(h->0) [ P(h)P(t) - P(t) / h ] = lim(h->0) [ P(h) - P(0) / h ] * P(t) Please could someone advise what happens?? Thanks!!
Ok, I think I inderstand this. As we are defining P(0) as the identity matrix we can take out P(t) as a factor.
