MATLAB Functions Commands by Subject | Help Desk |
Basic Operations | |
convhull | Convex hull |
cumprod | Cumulative product |
cumsum | Cumulative sum |
cumtrapz | Cumulative trapezoidal numerical integration |
delaunay | Delaunay triangulation |
dsearch | Search for nearest point |
factor | Prime factors |
inpolygon | Detect points inside a polygonal region |
max | Maximum elements of an array |
mean | Average or mean value of arrays |
median | Median value of arrays |
min | Minimum elements of an array |
perms | All possible permutations |
polyarea | Area of polygon |
primes | Generate list of prime numbers |
prod | Product of array elements |
sort | Sort elements in ascending order |
sortrows | Sort rows in ascending order |
std | Standard deviation |
sum | Sum of array elements |
trapz | Trapezoidal numerical integration |
tsearch | Search for enclosing Delaunay triangle |
voronoi | Voronoi diagram |
Finite Differences | |
del2 | Discrete Laplacian |
diff | Differences and approximate derivatives |
gradient | Numerical gradient |
Correlation | |
corrcoef | Correlation coefficients |
cov | Covariance matrix |
Filtering and Convolution | |
conv | Convolution and polynomial multiplication |
conv2 | Two-dimensional convolution |
deconv | Deconvolution and polynomial division |
filter | Filter data with an infinite impulse response (IIR) or finite impulse response |
filter2 | Two-dimensional digital filtering |
Fourier Transforms | |
abs | Absolute value and complex magnitude |
angle | Phase angle |
cplxpair | Sort complex numbers into complex conjugate pairs |
fft | One-dimensional fast Fourier transform |
fft2 | Two-dimensional fast Fourier transform |
fftshift | Move zero'th lag to center of spectrum. |
ifft | Inverse one-dimensional fast Fourier transform |
ifft2 | Inverse two-dimensional fast Fourier transform |
nextpow2 | Next power of two |
unwrap | Correct phase angles |
Vector Functions | |
cross | Vector cross product |
intersect | Set intersection of two vectors |
ismember | Detect members of a set |
setdiff | Return the set difference of two vectors |
setxor | Set exclusive-or of two vectors |
union | Set union of two vectors |
unique | Unique elements of a vector |