<p>If you didn't know @n2 means second arbitrary INTEGER constant. If you try to solve the problem again it'll probably put an @n3 instead (so it doesn't get mixed up with the first integer constant), and so on... If you ever get @1, @2, @3, or something like that without the n, that means ANY REAL arbitrary constant (but those don't really come up unless you're using DEsolve). If you want to reset your constant count go to Clean Up (F6, I think) then NewProb</p>
<p>Note: NewProb will clear all your input entries (and the outputs) as well as delete the values stored in constants a-z.</p>
<p>It kind of sucks but I type in the and (there might be a faster way), it wuld be something like entering these in (i didn't put in second, alpha, and diamond as key entries though) after the solve command:</p>
<p>[ | ] [ x ] [ > ] [ 0 ] [ space ] [ a ] [ n ] [ d ] [ space ] [ x ] [ < ] [ 2 ] [ pi ]</p>
<p>Also incase you didn't know [ | ] is the "such that" or "when" operator used to substitute in temporary values or set restrictions like above.</p>