User`s guide

R2010b
12-8
Mathematics
64-Bit Integer Arithmetic
Core MATLAB arithmetic functions now support int64 and uint64 classes natively.
Functions added are plus (+), minus (–), uminus (–), times (.*), rdivide (./), ldivide (.\),
power (.^), rem, mod, bitcmp, any, all, sum, diff, colon (:), sign, accumarray, and bsxfun.
New Utility Functions: isrow, iscolumn, ismatrix
New functions isrow, iscolumn, and ismatrix provide basic information about inputs.
Output Option for Point Distances in DelaunayTri/nearestNeighbor
Method
The two-output form of DelaunayTri/nearestNeighbor returns the corresponding
Euclidean distances between the query points and their nearest neighbors.
Changes to convhull and delaunay Functions
The functions convhull and delaunay now support 3-D input in either multiple vector or
multicolumn matrix format. In addition, the simplify option for convhull provides the
option of removing vertices that do not contribute to the area or volume of the convex
hull.
Performance Enhancements
• Three-Output Form of svd
The three-output form of svd displays significantly enhanced performance.
• Sparse Column Assignment
The assignment of elements into multiple columns of a MATLAB sparse matrix
displays significantly enhanced performance.
• Trigonometric Functions