I

• if (Matlab function) — Conditionally execute statements
• ifft (Matlab function) — Inverse discrete Fourier transform
• ifftshift (Matlab function) — Inverse FFT function
• imag (Matlab function) — Complex imaginary part
• input (Matlab function) — Request user input
• int16 (Matlab function) — Convert to 16-bit signed integer
• int32 (Matlab function) — Convert to 32-bit signed integer
• int8 (Matlab function) — Convert to 8-bit signed integer
• interp1 (Matlab function) — One_dimension interpolation function
• inv (Matlab function) — Matrix inverse
• isa (Matlab function) — Detect an object of a given type
• iscell (Matlab function) — Determine if input is a cell array
• ischar (Matlab function) — Determine if item is a character array
• isdir (Matlab function) — Determine if item is a directory
• isempty (Matlab function) — True for empty matrix
• isequal (Matlab function) — Determine if arrays are numerically equal
• isfield (Matlab function) — Determine if input is a structure array field
• isfinite (Matlab function) — True for finite elements
• isglobal (Matlab function) — Determine if item is a global variable
• ishandle (Matlab function) — Determines if values are valid graphics object handles
• ishold (Matlab function) — Return hold state
• isinf (Matlab function) — True for infinite elements
• isinteger (Matlab function) — Detect whether an array has integer data type
• isletter (Matlab function) — True for letters of the alphabet
• islogical (Matlab function) — Determine if item is a logical array
• ismember (Matlab function) — Data sets membership comparison
• isnan (Matlab function) — Detect NaN elements of an array
• isnumeric (Matlab function) — Determine if input is a numeric array
• ispc (Matlab function) — Determine if PC (Windows) version
• isreal (Matlab function) — Determine if all array elements are real numbers
• isscalar (Matlab function) — Determine if input is scalar
• isspace (Matlab function) — Detect elements that are ASCII white spaces
• issparse (Matlab function) — Test if matrix is sparse
• isstr (Matlab function) — Determine if item is a character array
• isstruct (Matlab function) — Determine if input is a structure array
• isunix (Matlab function) — Determine if Unix version
• isvector (Matlab function) — Determine if input is a vector