Mercurial > hg > octave-nkf
changeset 9006:979d0492ff40
more NEWS updates
author | Jaroslav Hajek <highegg@gmail.com> |
---|---|
date | Mon, 23 Mar 2009 08:29:51 +0100 |
parents | f26e0f00ce01 |
children | 7e31df9a0334 |
files | ChangeLog NEWS |
diffstat | 2 files changed, 53 insertions(+), 15 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2009-03-23 Jaroslav Hajek <highegg@gmail.com> + + * NEWS: More updates. + 2009-03-20 Jaroslav Hajek <highegg@gmail.com> * aclocal.m4 (OCTAVE_CMATH_FUNC): New macro.
--- a/NEWS +++ b/NEWS @@ -203,6 +203,39 @@ The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, max and min functions has been significantly improved. + ** Sorting and searching. + + The performance of sort has been improved, especially when sorting + indices are requested. An efficient built-in issorted implementation + was added. sortrows now uses a more efficient algorithm, especially + in the homegeneous case. lookup is now a built-in function performing + a binary search, optimized for long runs of close elements. Lookup + also works with cell arrays of strings. + + ** Range arithmetics + + For some operations on ranges, Octave will attempt to keep the result as a + range. These include negation, adding a scalar, subtracting a scalar, and + multiplying by a scalar. Ranges with zero increment are allowed and can be + constructed using the built-in function `ones'. + + ** Various performance improvements. + + Performance of a number of other built-in operations and functions was + improved, including: + + * logical operations + * comparison operators + * element-wise power + * accumarray + * cellfun + * isnan + * isinf + * isfinite + * nchoosek + * repmat + * strcmp + ** 64-bit integer arithmetic. Arithmetic with 64-bit integers (int64 and uint64 types) is fully @@ -263,21 +296,22 @@ addtodate hypot reallog bicgstab idivide realpow - cgs info realsqrt - command_line_path interp1q rectint - contrast isdebugmode regexptranslate - convn isfloat restoredefaultpath - cummin isstrprop roundb - cummax log1p rundemos - datetick lsqnonneg runlength - display matlabroot saveobj - expm1 namelengthmax spaugment - filemarker nargoutchk strchr - fstat pathdef strvcat - full perl subspace - fzero prctile symvar - genvarname quantile treelayout - histc re_read_readline_init_file validatestring + cellslices info realsqrt + cgs interp1q rectint + command_line_path isdebugmode regexptranslate + contrast isfloat restoredefaultpath + convn isstrprop roundb + cummin log1p rundemos + cummax lsqnonneg runlength + datetick matlabroot saveobj + display namelengthmax spaugment + expm1 nargoutchk strchr + filemarker pathdef strvcat + fstat perl subspace + full prctile symvar + fzero quantile treelayout + genvarname re_read_readline_init_file validatestring + histc ** Changes to strcat.