| Author |
Comment/Response |
Hannes
|
 09/12/11 10:41am
Here:
f[x_] := x^2+x+1
Solve[f[b]-2 == 0, b]
Solve[f[x]-2 == 0, x]
If I use "x", I get the 2 solutions, if I use "b" I get the empty set. I did not define b myself, so does b represent some predefined value? Just asking because this seems weird, in the Hands-on Start videos it appears to work with "b".
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