Barton Willis

featurep(X,'real) misses an important case

One of these has been fixed: (%i9) limit(inf+minf); (%o9) und (%i10) limit(x+minf,x,inf); (%o10) inf (%i11) limit(x+inf,x,minf); (%o11) minf

limit x->inf sin(100/x)*x very slow

This bug has been fixed by locally binding trigexpandtimes to false: (%i2) limit(sin(100/x)*x,x,inf); (%o2) 100 (%i3) time(%); (%o3) [0.015625] (%i4) limit(sin(10^8/x)*x,x,inf); (%o4) 100000000 (%i5) time(%); (%o5) [0.015625] I'm closing this ticket as fixed.

limit of a spherical_bessel_j function

Fixed by Commit [6c7372 . Added tests to rtest_limit_extra. Closing this ticket as closed.

Fix for \#4689: limit of spherical_bessel_j

I'm fairly sure this is a bug in simplimtimes: (%i7) limit(exp(x*%i)*x,x,inf); 0: (MAXIMA::SIMPLIMTIMES (((MAXIMA::MEXPT MAXIMA::SIMP MAXIMA::IRREDUCIBLE) MAXIMA::$%E ((MAXIMA::MTIMES MAXIMA::SIMP MAXIMA::RATSIMP) MAXIMA::$%I MAXIMA::$X)) MAXIMA::$X)) 0: SIMPLIMTIMES returned $UND (%o7) und The function simplimtimes apparently believes that inf x ind = und is an identity. I also think that is bug is responsible for at least one other testsuite bug.