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Content for 5.23 change log.

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1 parent 0720394 commit 0c2567fa74c98b5cdcc67301dbf40e4cd2426a85 robert_dodier committed Jan 2, 2011
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+ Maxima 5.23 change log
+
+
+ Backwards-incompatible changes:
+
+ * package draw: changed names of some options:
+ file_bgcolor --> background_color
+ pic_width, pic_height, eps_width, eps_height, pdf_width, pdf_height --> dimensions
+ rot_horizontal, rot_vertical --> view
+
+
+ New items in core:
+
+ * function bf_find_root: bigfloat version of find_root
+
+ * function find_root: recognize keyword arguments
+
+
+ New items in share:
+
+ * package cobyla: import Fortran COBYLA (constrained optimization)
+
+ * package draw: new graphic objects 'errors' and 'region'
+
+
+ Other revisions:
+
+ * further work on exponential integrals
+
+ * further work on abs and signum identities
+
+ * further work on special cases in integration
+
+ * translation of reference manual to German (ongoing)
+
+ * clean-up in code related to processing files
+
+ * general code clean-up
+
+ * package ezunits: additional built-in conversions
+
+
+ Bug fixes:
+
+ 3114834 maxima-help does not find help topics
+ 3111568 subsequent calls to gradef hide variable dependencies
+ 3102421 noninteractive-mode and kill(all)
+ 3101075 limit bug
+ 3093408 Bug in simplify_sum
+ 3085498 integration error (partial solution)
+ 3081820 lbfgs causes error
+ 3080397 laplace(unit_step(-t),t,s) generates an error
+ 3079975 rectform(atan2(y,0)) -> division by zero
+ 3073827 integrate(t*cos(a*t^2 + b*t + c), t, 0, 1) => division by 0
+ 3072490 contrib diag.mac variable scope
+ 3071208 rtest15--limit to inf from above
+ 3067311 eivects doesn't load eigen automatically
+ 3064709 domain error for tan
+ 3062883 diff does not recognize indirect dependencies in expressions
+ 3060669 filename_merge with more than two arguments
+ 3060166 und documentation is incorrect
+ 3058324 $save must bind *print-circle* to NIL
+ 3058290 tan(%pi*integer) simplification
+ 3055427 conjugate solver
+ 3045559 integrate(exp(-u^2), u, minf, x) => incorrect gamma_incomple
+ 3041267 jacobi_cs(x,1) returns a wrong expression
+ 3041196 carg(exp(x+%i*y)) -> y not correct
+ 3040667 logarc(acosh(z)) needlessly complicated
+ 3039452 integrate(sqrt(t^c)/(t*(b*t^c+a)),t) hangs
+ 3038883 In general exp(z)^a --> exp(z*a) not correct
+ 3034415 integrate(1/abs(x),x) using abs_integrate
+ 3024924 list_matrix_entries
+ 3020589 xlabel and ylabel don't change plot3d axis labels
+ 3020243 defint(exp(cos(x))*cos(sin(x)),x,0,2*%pi) wrong result 0
+ 2997443 ic2 fails
+ 2970792 gradef(s) together with vect package
+ 2881021 ic2 and bc2 may return incorrect results (solution suggeste)
+ 2796194 error doing a Fourier transform.
+ 2727846 tan(%pi/2) is not correct (or just not nice?)
+ 2555641 no doc for subnumsimp
+ 2541376 antidiff bug
+ 2171237 load(basic) warnings
+ 2123651 min and max of imaginary and real numbers
+ 1993208 cartesian_product incorrect on empyt argument list
+ 1990099 wrong integer_partitions(0)
+ 1892341 taylor message about something assumed to be 0 in integral
+ 1890128 no user doc for cauchy_matrix
+ 1839088 ic2 fails with division by 0
+ 1789213 ic1 for solution containing indefinite integral
+ 1439559 function burn is broken
+ 1213621 reveal with matrix argument
+ 1149719 ratvarswitch not documented
+ 1045920 a>1 and b>1, is a+b>2?
+ 875089 defint(f(x)=g(x),x,0,1) -> false = false
+ 767338 Evaluation of array names
+ 703789 save() doesn't return a pathname
+ (unnumbered) integrate(cos(2*x)*cos(x),x) is wrong.

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