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Matrix Calculus Go to: Introduction, Notation, Index Contents of Calculus Section Notation Differentials of Linear, Quadratic and Cubic Products Differentials of Inverses, Trace and Determinant Hessian matrices Notation j is the square root of -1 XR and XI are the real and imaginary parts of X = XR + jXI (XY)R = XRYR - XIYI (XY)I = XRYI + XIYR XC = XR - jXI is the complex conjugate of X XH=(XR)T=(
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