04/21/2012, 05:04 PM
Hi
while trying to make a numerical method i stumbled upon a perhaps classical and/or old question :
" composition lemma "
f: R-> R
g: R->R
Let f [ g^(-1)[x] ] + g^(-1) [ f[x] ] = 2 g[x]
(?) ==> (?) g^(2) [x] = f [x]
regards
tommy1729
while trying to make a numerical method i stumbled upon a perhaps classical and/or old question :
" composition lemma "
f: R-> R
g: R->R
Let f [ g^(-1)[x] ] + g^(-1) [ f[x] ] = 2 g[x]
(?) ==> (?) g^(2) [x] = f [x]
regards
tommy1729