1. 27 May, 2018 1 commit
  2. 24 May, 2018 1 commit
  3. 20 May, 2018 2 commits
  4. 18 May, 2018 1 commit
    • Morten Welinder's avatar
      ExprDeriv: introspection fixes. · 53c161e3
      Morten Welinder authored
      This fixes the handler's lifetime annotation and adds introtrospection
      for the rest of the derivative api.
      
      Also fixes a cut-and-paste problem affecting derivative of a reference
      to a non-existing cell.
      53c161e3
  5. 16 May, 2018 1 commit
  6. 11 Dec, 2016 1 commit
  7. 14 Sep, 2016 1 commit
  8. 13 Sep, 2016 1 commit
  9. 11 Sep, 2016 1 commit
    • Morten Welinder's avatar
      expr-deriv: new code for analytic derivative of spreadsheet expressions. · b444765b
      Morten Welinder authored
      This can generate some fairly impressive expressions for the derivative
      of the function that an expression represents.
      
      It is not particularly smart: it understands constants, +, -, *, /, ^,
      and the functions sum and sumsq.  For anything else, it bails.  In case
      you are wondering, those elements are enough to compute the square
      residuals of rational models.
      b444765b