Student Support Forum: 'RSolve, wrong solution' topicStudent Support Forum > General > "RSolve, wrong solution"
| Author |
Comment/Response |
Jankonyex
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 12/27/08 10:09am
I use "RSolve" to solve:
a[n]-a[n-1]==b[n]
a[n]-a[n-1]==n
and it gives me:
b[n]->n+1
obviously wrong!
step:
RSolve[{a[n]-a[n-1]==b[n],a[n]-a[n-1]==n},{a[n],b[n]},n][[1,2]]
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