Bård Skaflestad
6ed2b129cb
Implement constant() and variable() in terms of function()
...
Specifically,
- A constant is a function with zero derivative
- A variable is a function with unit derivative with respect to
itself.
2013-04-30 13:41:13 +02:00
Bård Skaflestad
70996fb195
Remove two instances of EOL whitespace.
2013-04-30 13:35:34 +02:00
Bård Skaflestad
86eb29b4c3
variable(): Avoid memory overhead of identity constructor.
2013-04-30 12:48:02 +02:00
Bård Skaflestad
c276592ca5
Don't #include <iostream>. It's not needed.
2013-04-30 12:37:08 +02:00
Bård Skaflestad
06d2c078fa
Use documented include statements for Eigen
2013-04-30 12:36:43 +02:00
Bård Skaflestad
134b9b1a7f
Readjust whitespace to original conventions.
2013-04-30 11:52:03 +02:00
Atgeirr Flø Rasmussen
e2d8b77ec5
Initial vector AD type experimentation.
2013-04-30 11:48:04 +02:00
Atgeirr Flø Rasmussen
0bf693e8c0
Merge remote-tracking branch 'bska/master'
2013-04-30 11:07:13 +02:00
Atgeirr Flø Rasmussen
42cdfa27a0
Use named constructor pattern.
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Made AutoDiff::Forward constructor private.
Added static methods constant(), variable(x) and function(x, dx).
2013-04-30 11:05:59 +02:00
Bård Skaflestad
6319c428a3
Don't return values from update operators.
...
Statements like
a = b += c
make no sense
2013-04-30 10:47:00 +02:00
Bård Skaflestad
0ff3b721ee
Rename members to better reflect purpose.
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Specifically,
- x_ -> val_
- dx_ -> der_
2013-04-30 09:25:37 +02:00
Bård Skaflestad
e17447d6cd
Add further test cases
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- Polynomials (including mixed mode arithmetic)
- Cosines (including mixed mode arithmethic)
- Square roots (including mixed mode arithmetic)
2013-04-30 00:08:02 +02:00
Bård Skaflestad
011ab5ee93
Operator *=(): Use correct derivative chain rule
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Updating the derivative using '*=' is just plain wrong.
2013-04-29 23:53:31 +02:00
Bård Skaflestad
72d6d32095
Don't use updated values for computing derivatives
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We must not overwrite the current evaluation point until all the
derivative values have been calculated. Otherwise, the derivatives
will differ from that of the actual values.
2013-04-29 23:28:49 +02:00
Bård Skaflestad
72e2b1f5ca
Ignore executables.
2013-04-29 15:01:03 +02:00
Bård Skaflestad
a4cdbdc049
Add test cases for multiplication and division
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Helped uncover syntax error (misprint) fixed in commit 8105166
2013-04-29 14:52:38 +02:00
Bård Skaflestad
8105166c26
Fix misprint in Forward/Scalar case.
2013-04-29 14:51:28 +02:00
Bård Skaflestad
790f6a06b2
Add simple test cases
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- Initialisation
- Addition (including mixed mode)
- Subtraction (including mixed mode)
2013-04-29 14:12:57 +02:00
Bård Skaflestad
b05f65ae70
Add simple library for automatic differentiation
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No build system or automatic test cases at this point.
2013-04-29 13:39:57 +02:00
Bård Skaflestad
33f2623257
Ignore Emacs autosave files.
2013-04-29 13:39:26 +02:00
Bård Skaflestad
a3ae90635e
Initial commit
2013-04-29 01:31:45 -07:00
