1   Maxima 5.28 change log
2
3   Backwards-incompatible changes:
4
5 * package stats: removed function simple_linear_regression (superseded by
6   linear_regression)
7
8
9   New items in core:
10
11 * new function generalized_lambert_w
12
13 * new functions zn_mult_table, zn_power_table
14
15 * new functions for Galois fields: gf_set, gf_char, gf_prim, etc.
16
17
18   New items in share:
19
20 * package descriptive: new function principal_components
21
22 * package descriptive: new histogram style 'density'
23
24 * package stats: new function linear_regression
25
26
27   Other changes:
28
29 * revise system for building Maxima on MS Windows
30
31 * function gamma_incomplete: improve accuracy for complex bigfloats
32
33 * function expintegral_e: improved calculation for large imaginary part
34
35
36   Bug fixes:
37
38 3539699: limit of atan2
39 3538167: Wrong result for definite integral
40 3534858: wrong answer: limit
41 3533723: abs_integrate causes stack overflow
42 3530767: integrate changes k[0] --> k(0)
43 3530272: nthroot, bad error msg
44 3529992: Shi (sinh integral) wrong branch, integrate inconsistent
45 3529144: Error integrating exp(-x)*sinh(sqrt(x)) with domain: complex
46 3526359: gamma_incomplete(1/5,-32.0) not accurate
47 3526111: float erf (%i) not working
48 3522750: assume & integrate
49 3521596: atan2(sqrt(1-u)*(u-1),1); /* hangup */
50 3517785: Wrong sign in exponential integral
51 3517034: polarform error on simple case
52 mailing list 2012-04-09: Loading gentran
53 mailing list 2012-03-27: bug in net present value
54 unnumbered: inequality facts being forgotten
55 unnumbered:  limit(erfc(z), z, inf)
56 unnumbered: bug in animated_gif
57 unnumbered: Lisp output not readable
58 unnumbered: bigfloats parsed incorrectly when ibase is not 10
59