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Subject 103 April 2004 Q7

R

Rixius

Member
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.
 
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