| commit | b444765b7a27a2862b6e740bf901ad8d983ced89 | |
| author | Morten Welinder <terra@gnome.org> | |
| Sun, 11 Sep 2016 22:37:47 +0000 (11 18:37 -0400) | ||
| committer | Morten Welinder <terra@gnome.org> | |
| Sun, 11 Sep 2016 22:37:47 +0000 (11 18:37 -0400) | ||
| tree | 4ec31abed7a061c99545e152c72771e87b4a6e85 | treesnapshot (tar.gz zip) |
| parent | 80445709e26596197659a08bea35017db0b74c15 | commitdiff |
expr-deriv: new code for analytic derivative of spreadsheet expressions.
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.
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.
| src/Makefile.am | diffblobblamehistory | |
| src/expr-deriv.c | [new file with mode: 0644] | blob |
| src/expr-deriv.h | [new file with mode: 0644] | blob |