|  | ZHANG, Ruda | June 14, 2022: 
          Minor edits; more on SVD, normal matrix, unitary matrix.
          [31e71f8] | 
      
        |  | ZHANG, Ruda | June 04, 2022: 
          Add left/right inverse, matrix exponential, condition number, Frechet derivative, inverse.
          [667167e] | 
      
        |  | ZHANG, Ruda | April 09, 2022: 
          More on least squares (general, iterally reweighted)
          [1529f42] | 
      
        |  | ZHANG, Ruda | June 11, 2020: 
          More on multilinear operator, multivariate Taylor's formula.
          [35b024a] | 
      
        |  | ZHANG, Ruda | June 11, 2020: 
          Format math.
          [2849f41] | 
      
        |  | ZHANG, Ruda | April 18, 2020: 
          Topological and strong equivalent of norms and metrics.
          [c6ba1e3] | 
      
        |  | ZHANG, Ruda | January 23, 2020: 
          More on Hilbert space.
          [a81f4f5] | 
      
        |  | ZHANG, Ruda | January 21, 2020: 
          More on Hilbert space.
          [67ff8bb] | 
      
        |  | ZHANG, Ruda | December 05, 2019: 
          More on manifolds, from John Marshall Lee's textbooks.
          [6ba9029] | 
      
        |  | ZHANG, Ruda | May 23, 2019: 
          Compare concepts in linear operator theory and matrix theory.
          [d2d1928] | 
      
        |  | ZHANG, Ruda | May 22, 2019: 
          More on linear operators.
          [27de1ed] | 
      
        |  | ZHANG, Ruda | May 16, 2019: 
          More on measure space, linear operators.
          [3390fb8] | 
      
        |  | ZHANG, Ruda | April 28, 2019: 
          More on linear operators, algebra.
          [8629d3e] | 
      
        |  | ZHANG, Ruda | April 26, 2019: 
          More on linear operators
          [c2b216d] | 
      
        |  | ZHANG, Ruda | April 21, 2019: 
          More on analysis
          [ebac375] |