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Change log for Maxima 5.21.

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1 parent c175d3c commit 5b6cc03abfda70bac7a35a3d3d5f7091ad6a0e02 robert_dodier committed May 2, 2010
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+ Maxima 5.21 change log
+ Compiled 2010-04-14
+
+
+ New items in core:
+
+ * plot3d: multiple surfaces; built-in spherical transformation
+
+
+ Other revisions:
+
+ * revision of hypergeometic functions
+
+ * extension of Bessel functions
+
+ * extension of abs_defint function
+
+ * extension of Riemann zeta function
+
+ * limits of signum functions
+
+ * package draw: new graphic object 'tube'
+
+
+ Bug fixes:
+
+ 2979579: plot3d with format xmaxima does not work in Xmaxima
+ 2976744: postscript terminal requires manual reset of default termina
+ 2976657: Usage of gammagreek and %gammagreek
+ 2974616: mat_cond
+ 2969599: integrate bug?
+ 2968344: gamma_incomplete(1.0, 4.368265444147715e+19) fails
+ 2968174: Integration of hypergeometric bug
+ 2965201: run_testsuite() causes Lisp error
+ 2965115: 2*%e,numer -> single float precision
+ 2962943: simplifya gives Lisp error for a cons
+ 2961822: sinh(0.0b0) causes Maxima to abort
+ 2957758: plotting gamma_incomplete_regularized incorrect
+ 2954141: Kummer reflection
+ 2953369: Definite Integration of 1/(a-b*cos(x)) wrong
+ 2949677: hypergeometric floating point
+ 2948800: integrate((1-cos(2*x)^2)^2/x^4,x,0,inf) wrong
+ 2945609: incomplete/misleading documentation of coeff
+ 2943581: Grind omits empty strings
+ 2943400: 'linel' command can crash 'maxima'
+ 2938716: too much evaluation in translated code
+ 2938177: simplify_sum(sum(k^n,k,1,m)) -> stack overflow
+ 2938078: Crash on attached input
+ 2937837: find_root_error documentation incorrect
+ 2935631: bfloat(log(n)) can be different from log(bfloat(n))
+ 2933996: abs_integrate bug
+ 2933440: sqrt(-z^2) simplifies to %i*sqrt(z^2) for z complex
+ 2932096: allroots fails for real polynomial.
+ 2927502: abs() or cabs() are much slower than just sqrt(re^2+im^2)
+ 2924831: file_type is wrong for ccl on mac os x
+ 2921946: Expansion of bessel_k(1/2,x) with radexpand:false
+ 2920190: non-integer value for maxposex
+ 2919296: binomial sums
+ 2914376: implicit_plot error
+ 2914296: Limit gets Maxima stuck
+ 2914176: Conversion of rational to bfloat is inaccurate
+ 2913614: LAPACK: dgesvd is broken
+ 2911891: gcfac gives Lisp error
+ 2910437: non-repeatable beta_incomplete(1b0,1,z)
+ 2910001: optimization of bfloat input
+ 2909980: optimization for log of bfloats
+ 2909917: documentation type -- jornan
+ 2907952: diff of a taylor series
+ 2907815: sold variable in diag(x) (package diag) should be local
+ 2907727: Incorrect Integral with option integrate_use_rootsof
+ 2892710: Allow easier library access
+ 2880797: bad answer in integrate(sqrt(sin(t)^2+cos(t)^2),t,0,2*%pi)
+ 2875784: fourier integral incorrect
+ 2859856: csign(log(x)) --> pnz
+ 2852992: sqrt(-1/x)-%i/sqrt(x) not zero
+ 2843621: GosperSum error
+ 2808861: list function arguments with mode_declare in translate
+ 2786017: realonly in algsys.lisp
+ 2607007: legend does not work
+ 1869296: hgfred([1,2],[6],1) bogus
+ 1857562: hgfred([a,b],[c], 0) -/--> 1
+ 1633149: sum bug that never happens
+ 1620165: assoc needs to check argument, was: Strange error
+ 1531688: hgfred([ ], [ ], 0)
+ 1440286: documentation for 'listofvars'
+ 1440069: euler numbers & zerobern
+ 1376392: limit(x/(2+sin(1/x)), x, 0); wrong result
+ 1372264: no user doc for 'numer_pbranch'
+ 1219846: properties of translated functions
+ 1106912: limit(x/sin(x)^2,x,inf)
+ 1010768: sqrt(1/z) - 1/sqrt(z) => 0
+ 932095: ode2 redundant asksign
+ 910270: 1/+3*x parses as 1/(+3*x)
+ 903166: assume works for real values only
+ 900860: Simplifications involving abs
+ 893633: depends(a,[b,b,b])
+ 856209: inconsistency between facts() and facts(v)
+ 840848: trigreduce doesn't enter unknown functions
+ 811522: redundant question in limit
+ 781657: binomial(x,x) => 1, but binomial(-1,-1) => 0
+ 777564: subtraction \"-\"(a,b) should work/FIX
+ 776441: orderlessp not transitive
+ 767556: Distributing operations over =
+ 767528: op(box(a)) bogus
+ 752417: KEEPFLOAT:TRUE ignored by SOLVE
+ 719968: No SIMP function
+ 710307: orderlessp of bfloat, %e, and inf
+ 660876: taylor and keepfloat ERR
+ 655270: Incomplete integration
+ 643254: orderlessp([rat(x)], [rat(x)])
+ 593351: limit/sin(inf)etc. should give 0, not IND

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