MatLab
lastmod 2018-08-17created 2015-02-166 edits
MATLAB is engineering software developed by MathWorks that provides a numerical analysis and programming environment. It supports matrix-based computation, and provides features for plotting functions and data and for implementing algorithms through programming. MATLAB is used in a wide range of science and engineering fields that require numerical computation.
Functions
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i: Imaginary unit. -
abs: Absolute value and complex magnitude. -
real: Real part of complex number. -
imag: Imaginary part of complex number. -
exp: Exponential. -
angle: Phase angle. The angle function can be expressed asangle(z) = imag(log(z)) = atan2(imag(z),real(z)). -
mat2gray: Convert matrix to grayscale image. -
fft2: 2-D fast Fourier transform. -
ifft2: 2-D inverse fast Fourier transform. -
atan2: Four-quadrant inverse tangen.