LME Libraries Release Notes

LME 5.0

New

• colormaps: color maps for colormap command
• polyhedra: regular polyhedra
• solids: simple solid shapes

LME 4.7

Minor changes

• classes: in char and disp, support for complex coefficients
• classes: all errors have error identifiers
• quaternion: not bundled anymore (replaced by native support of quaternions)

LME 4.6

New features

• stdlib: ndgrid

Minor changes

• stdlib: fft2, ifft2, std, and cross have been removed (they are native now)
• stat:
• moment, var, skewness, and kurtosis have been removed (they are native now)
• bench: uint8 benchmark requires less memory for setup (no effect on timings)
• bench: new results for Intel Macintosh and Atari ST

Bug fixes

• lti: zpk didn't pass correctly arguments to tf::tf; fixed
• stdlib: toeplitz with a single argument was broken; fixed

LME 4.5.2

Minor changes

• lti, quaternion, stdlib: prod(size(...)) replaced by numel(...)

Bug fixes

• lti: tf::horzcat and tf::vertcat didn't work correctly with models without any state; fixed
• lti: tf::connect was missing; fixed

LME 4.5.1

Minor changes

• stdlib: functions sec, csc, cot, asec, acsc, acot, sech, csch, coth, asech, acsch, acoth, and log2 have been removed; they're now native in LME

Bug fixes

• wav: glitch in the source code fixed

LME 4.5

New features

• bench: new
• date: new
• stdlib: blkdiag
• lti: ssdata, tfdata
• lti: lti::norm (H2 norm)
• lti: lti::isct, lti::isdt, lti::dcgain
• quaternion: support for matrices of quaternions; internal structure has changed, double gives now an m-by-n-by-4 array, arithmetic operators now work on quaternion matrices like on real or complex matrices, inv and matrix division operators work on matrices and not element-wise; new functions beginning, cos, ctranspose, cumprod, cumsum, det, diag, elnorm (which replaces norm), end, flipdim, fliplr, flipud, horzcat, imag, isempty, ldivide (which replaces mldivide), length, lu, prod, real, rdivide (which replaces mrdivide), repmat, rot90, sin, size, sqrt, subsasgn, subsref, sum, times (which replaces mtimes), transpose, tril, triu, vertcat
• stat: nancov, nancorrcoef
• filter: new

Minor changes

• lti: tf objects have a cell array of ratfun objects instead of a list and a separate field for the size
• lti: tf::feedback and tf::plus apply minreal to the result to remove superfluous states
• lti: ss::repmat
• lti: tags for all error messages
• lti: G*H and G+H, where G or H is 1-by-1
• lti: the sample time of lti objects representing static gains is ignored in expresions where they would cause the error "Sample time don't match"
• stdlib: logspace displays a warning when the upper bound gives infinity

Bug fixes

• stdlib: toeplitz(c,r) where length(r) was 1 gave c' instead of c; fixed
• lti: lti::disp doesn't display a superfluous blank line anymore
• lti: tf::feedback for SISO systems ignored the sign argument; fixed
• lti: lti::feedback couldn't mix state-space, transfer functions or numeric matrices; fixed
• lti: tf with a sample time had a default variable name of 's'; no it's 'z'
• lti: ss::minreal didn't always produce the correct result; fixed