Small changes; see description

• YF (exponents of prime factorization) now has a two-output version that produces the prime factors too
• YG corrected and improved. Thanks for noticing, @suever!
• Characters 0--7 and 14--31 are now replaced by a space before being displayed in functions D and XD, and also in ZD for char input (not in YD used as fprintf)

Various changes; see description

• Added YF: exponents of prime factorization.
• Changed implementation of spiral for Octave
• Function o as "parity" was missing in the documentation table. Thanks, @DrGreenEggs
• U for numeric input now squares it (raises it to power 2). Thanks, @DrGreenEggs!
• h, v and Xc convert logical to numeric if some input is char, so they can be concatenated. Thanks, @suever!
• Improved compatibility of Zc with Matlab R2014a. In char mode the first input is linearized to a row cell array, so that
  strjoin works
• Yn with 2 or 3 numeric inputs applies flags 'linear' and 'extrap' by default

Various improvements (see description)

• Removed 2*pi predefined constant
• V now uses format '%.15g ' by default. Thanks, @suever!
• Added Y- (deconv) function
• Corrected a bug in the Zh (hypergeometric) function on Octave
• Modified Zh (hypergeometric function) as follows: if a numerator coefficient is a nonpositive integer the series is truncated at the first index for which a zero appears in the numerator
• axis now calls drawnow
• Added predefined literals for consonant letters. Thanks, @suever!
• o now behaves like mod(..., 2) for inputs that are already double
• 1-input versions of *, +, -, <, > now use transposed first input as second input. Thanks to @suever for the suggestion!
• Corrected a bug that affected automatic generation of input/output specs for command-line help

See description

• With more than two inputs, the second input of X> and X< is automatically replaced by []. Thanks, @suever!
• Added support for complex values in loop condition for while and do...while loops
• Added optional finally statement in do...while and while loop
• Fixed a bug in Octave's datestr function. Thanks, @david!
• B, XB, YA can now take empty input
• Xc (concatenate) now takes the dimension as last input, not first
• Extended XR, ZR to build triangular or symmetric matrices
• Avoids occurrence of '-0' in the output of V, D, XD in Octave.
• Generalized ind2sub and sub2ind so that they allow arbitrary input values
• Some letters are allowed as replacement for numbers in array literals. See section 4.2 of the documentation
• YC and ZC (im2col) now allow cell array input
• Modified the patch of unique on Octave to be less memory intensive
• imwrite (YG) now accepts an empty filename, and in that case defaults to 'image.png'
• Yc (strcat) with all inputs numeric now works as horzcat with singleton expansion
• Corrected a bug in "next prime" function that caused it to fail for non-integer inputs
• Yv with numeric input now computes eigen- or singular-value decomposition
• Invalid regular expressions now produce empty outputs with XX (regexp) on Octave, like they do in Matlab
• Invalid regular expressions now do nothing with YX (regexprep) on Octave, like they do in Matlab
• YX now converts cell array contents into char, like XX does
• matl -e not correctly produces automatic comments for break and `continue
• e (reshape) with second input logical now works as follows: contiguous equal values indicate dimensions that will be collapsed; and a final [] is implicit

Minor correction of previous release

Fixed bug that removed last two characters in command-line help

Predefined literals now included in command-line help

18.0.1

Fixed bug that prevented predefined literals to be included in comman…

Various changes; see description

• Third and fourth (optional) inputs of Ys (cumsum) can now be a single input
• Xv (remove whitespace) unified with Xz (`nonzeros). Also, char(0) is now considered whitespace
• X+ has been removed. Use Y+ ot Z+ instead (conv2). In addition, Y+ allows string input flag to be replaced by a number; and both Y+ and Z+ now allow sparse input in Matlab
• Added polyfit function as 3-input version of ZQ
• Octave compatibility: kron now automatically converts inputs to double, as happens in Matlab
• Zg now includes function betaln in addition to gammaln
• New Yg function, corresponding to gamma, gammainc and betainc. Note that gamma allows a wider input range than gammaln does. (That's not the case with beta and betaln).
• Xn now computes multinomial coefficients (one input), in addition to binomial coefficients (two inputs)
• If a logical array is used as second input to e (reshape), its size is used
• Yn (interp1) now includes poly ( 1 input)
• Zp now accepts char input when running on Matlab
• XM (mode) now allows a cell array of strings in first input
• Added function YI (col2im). Second and third input are more flexible than in the Matlab function
• Xf with 1 input now generates all substrings

`&` meta-function and other changes; see description

• Introduced & meta-function for alternative or secondary default numbers of inputs/outputs
• Unified norm and determinant functions with absolute value function (|). Extended determinant function
• matl -e (display with automatic comments) no longer produces trailing spaces
• Corrected a bug in the two-input version of Y@ (perms)
• Corrected bug in YL (gallery) with the gcdmat option
• Changed end-based indexing semantics. Now a+j*b stands for a+end*b. Changed predefined contents of levels 1--6 of clipboard L accordingly
• Modular indexing can now be applied to non-scalar indices too
• Numerical non-integer indices are now automatically rounded
• Y@ with two inputs now allows first input to be a cell array. The results are sorted in all cases.
• u and Xu (unique) now include a fourth output with the count of occurrences
• Bug corrected in Yo (round): it wasn't taking more than 1 input. Added support for 2 or 3 inputs on Octave
• Bug corrected in Za (base2base) when first input didn't contain any valid digit
• Second and third inputs of d (diff) have been interchanged
• Extended ZQ function: with $1$ input it computes roots of a polynomial
• G now implicitly takes one user-input if clipboard G is empty (thanks to @david for the suggestion)

Several changes; see description

• Y@ now allows two inputs, and in that case computes variations (without repetition)
• Improved Octave compatibility for strncmp function
• Corrected documentation of function X#.
• Third input of XQ (accumarray) can now be omitted
• u and Xu (unique) are now stable by default
• Character 0 is displayed as a space on Octave, like Matlab does
• HTML tags removed in nodesktop mode. Thanks, @suever!

Several improvements; see description

• Improved Xd (spdiags): now it allows vector input with two outputs (Matlab and Octave don't)
• u in stable mode now produces up to three outputs
• u with numeric cell array now allows sorted and stable modes
• Corrected a bug in the pad values used by e (reshape). Thanks, @suever! Also, this function with character input now pads with character 0
• Octave compatibility. Ym (mean) and ' Zs(std`) now allow char input
• Some functions now allow a number instead of a string input flag. Specifically (more may be added in the future): unique, intersect, union, setdiff, setxor, conv, regexp, regexprep, sum, mean, strsplit, interp1, pdist2, accumarray, gallery, padarray.
• Zn now also computes the determinant of a square matrix