Maxima 5.47 change log

New items in core:

• function powerseries: power series for function lambert_w
  (thanks to Dimiter Prodanov)
• --init option strips any directories and the last extension from the
  given value. This value is used as the basename instead of
  "maxima-init" for the name of the init file. This is an incompatible
  change.
• --init-mac and --init-lisp are now (deprecated) aliases for --preload.
  This is an incompatible change.
• The variable $maxima_frontend_bugreportinfo allows the frontend to
  tell bug_report() how to report frontend bugs.

New items in share:

• package pslq: PSLQ algorithm for finding integer relations
  among inexact numbers (thanks to Andrej Vodopivec)
• package nelder_mead: Nelder-Mead algorithm for minimization without
  derivatives (thanks to Mario S. Mommer and Andrej Vodopivec)
• package decfp: exact decimal floats (thanks to Richard J. Fateman)

Changes in core:

• Maxima/ABCL: Use the option --noinform for ABCL.
  This suppresses the startup messages from ABCL, so that e.g. the Maxima
  option --quiet is quiet.
• Fix command line options for Maxima with ABCL.
• Functions that return lambda expressions with free variables are
  now translated correctly. Previously many of these lambda expressions
  would cause internal errors when called.
• Array functions and subscripted functions can now be translated.
  Previously these would fail to translate with no explanation.
• configure: If the user doesn't specify a specific lisp maxima is compiled
  with all suitable lisp compilers.
• --no-init now actually inhibits load if the user init files.
• Init files that are loaded are now printed on startup
• Add functions and variables for inspecting floating point properties
• Variables: most_positive_float, most_negative_float, least_positive_float, least_positive_normalized_float, least_negative_float
• Functions: float_eps, bitfloat_eps, float_precision, unit_in_last_place, is_power_of_two, scale_float, decode_float, integer_decode_float
• Simplify elliptic_kc((sqrt(3)+2)/4)
• Fix bug in converting inverse_jacobi_ds to elliptic_f.
• bfallroots with integer coefficients was not returning roots with the specified precision.
• Add hypergeometric representations for elliptic_ec, elliptic_kc, expintegral_chi, expintegral_ci, expintegral_shi, expintegral_si, expintegral_li, expintegral_ei, expintegral_e
• hgfred can simplify some 2F2 functions to expintegral_ci.
• hgfred can simplify some 1F2 functions to expintegral_si.
• Reject invalid values for debugmode.
• disp_time variable removed because it was undocumented and didn't actually do anything.
• Floats are displayed readably by default (fpprintprec = 0)
• Function texput: punt to previously defined TeX output function
  when false is returned
• Strings are comparable under "<", "<=", ">=", ">"
• Function plot2d: new option gnuplot_svg_background

Changes in share:

• package contrib_ode: Fix name of Clairaut differential equation
  in code and documentation. Was misspelled as Clairault.
• package tensor: commit code from Toth & Turyshev paper for trace-free
  decomposition, for time and memory assessments
• package namespaces: expunge this package, moved to Github
• package ezunits: derive units for diff, integrate, and 'at'
• function mnewton: optional argument for the Jacobian
• function mnewton: revise mnewton for greater simplicity and speed
• Document harmonic_number and harmonic_to_psi functions from simplify_sum.
• package draw: allow points(...) to contain nonnumeric (including non-finite floats) data
• package draw: honor fill_density in errors, polygon, ellipse, bars, explicit, and region
• package descriptive: implementation of skyline (outline) histogram
• package descriptive: optional weight argument recognized by mean, var, std, and other functions
• package distrib: maximum likelihood estimators (mle_something) for several distributions
• package graphs: new functions get_unique_vertex_by_label and get_all_vertices_by_label

Changes in Xmaxima:

Changes in the Windows installer:

• Update Gnuplot, SBCL, wxWidgets and TCL/TK.
• Compile a recent texinfo for building the installer. Maxima now needs
  texinfo 6.8, but 6.7 is included in the usual build machines for
  nightly builds, etc.

Bug fixes for numbered bugs:

• #545: multivar taylor gives 1^2
• #608: taylor(x^a,[x],0,1) unsimplified
• #1743: limit of trig expression
• #3026: missing info files not well-handled
• #3071: limit of expressions with signum not very powerful
• #3136: gruntz(atan2(x^2-2,x^3-2*x),x,sqrt(2),minus) => atan2(0,0) undefined
• #3279: limit incorrect with domain:complex
• #3280: gruntz incorrect limit
• #3415: limit doesn't check for zero coefficients in limit((ax+1)/(ax+2),x,inf)
• #3592: Wrong limit
• #3631: gen_laguerre returns 0 to a negative exponent
• #3834: abconvtest undocumented and possibly unused
• #3848: ratsubst error ZEROP: ((MMINUS) 1) is not a number
• #3926: Various limits give UND where they should give IND
• #3953 Pressing q necessary to continue when plot2d output to svg
• #3956 expand(1/((sqrt(2)-1)*(sqrt(2)+1))) => 1/1 (unsimplified)
• #3963 trace doesn't detect calls to functions defined by DEFMFUN in Lisp code
• #3958 plot2d with multiple discrete plots fails
• #3959 plot2d + Gnuplot 4 with plot title noenhanced
• #3965 maxima --list-avail fails with GCL, but works with ECL and SBCL
• #3966 lis should be zeta(s) (with conditions on s)
• #3967 elliptic_e(5*%pi/4,1) inconsistent with numerical evaluation
• #3968 zeta(-r) should use analytic continuation?
• #3970 draw does not do adequate argument checking
• #3972: gcl only: Autocompletion inverts command case
• #3982 tex complains about Unicode character in symbol
• #3984 limit for und + something yields something instead of und
• #3985: integrate(sin(x*cos(x)), x), risch; causes unlimited recursion
• #3992 Add word to Integration.texi
• #3996: parse_string fails to parse string which contains semicolon
• #3998: Lisp error when parser encounters eof in a comment
• #4008: translator and prederror
• #4018: defint(foo,,0,inf) lisp error when denom(foo) contains %i
• #4029 limit(cos(1/x)^2 + sin(1/x)^2 + cos(x),x,0) --> ind
• #4035 Invisible characters should work better
• #4036: prederror affects bigfloat calculations
• #4043: bug in to_poly
• #4045 Different results for integration in Maxima 5.45.1 and 5.46.0
• #4046 plot2d legend option shows the wrong label in the list
• #4048 An incorrect limit
• #4050: Maxima can't handle limits of Fibonacci expressions
• #4056 Cannot create very large data array
• #4060 Wrong limit of -3li3+3x*li2+x^3 at x -> inf
• #4061 2.0^1024 gives "false" on second try
• #4062 limit(li3, x, inf) gives li3
• #4064 Simple limit triggers Lisp error "1 is not of type LIST"
• #4077 Replace opcons with ftake*
• #4084 Error in [lin]solve with orderless called before
• #4088: maxima variable prefer_d undocumented
• #4089 Specvar ans in schatc
• #4090 output formatting: -x-1 has redundant parentheses: (-x)-1
• #4092 Repeated factorial (n!)! displayed the same as double factorial n!!
• #4094 Build warning in share: grep: warning: stray \ before #
• #4029 limit(cos(1/x)^2 + sin(1/x)^2 + cos(x),x,0) --> ind
• #4097 Bad string representation of integers in the first argument of save
• #4100 On macOS, building Maxima has some issues
• #4107 least_positive_float doesn't print/read correctly in float/bfloat
• #4109 Limits of polylogarithms
• #4112 Double superscript in tex(conjugate(z))^2
• #4118 facsum + operator(".") + dotdistrib:true + GCL = FAIL
• #4119 ECL fails decode_float(-0.25) test
• #4120 is("foo"<3) gives internal error

Unnumbered bugs fixed:

• commit 7a7114c: avoid call to undefined function expintegral_ei
• commit fe1d8cf: avoid clobbering global state when autoloading
• commit 70a5f78: expunge calls to 'sign' in share package distrib
• commit 7bc968a: in printf, be more consistent about non-numeric argument for ~e, ~f, and ~g

Documentation:

• Help can use html docs instead of displaying help to the terminal.
  This is enabled by setting output_format_for_help to 'html; it defaults
  to 'text. Use 'frontend to display help using Xmaxima, wxMaxima or
  other frontends.
• Add documentation for trigtools to the manual.
• Some reordering of the trig functions in the manual.
• Some renaming of sections in the manual to be more explicit.
• Add more cross references.
• Add more examples for erf_representation, hypergeometric_representation, expintrep, expintexpand, besselexpand
• Add examples for the ggf package.

Build system: