# Timeline

## Jan 10, 2012:

1:10 AM oss/lolunit/tutorial edited by sam
1:06 AM Blog: Better function approximations: Taylor vs. Remez comment added by sam
@Gábor: I am sorry but I realised that an accuracy of 1e-18 was …
12:22 AM Changeset [1129] by sam
lolremez: release LolRemez 0.2.
12:15 AM Blog: Announce: LolRemez 0.2 released edited by sam
layout
12:15 AM Blog: Announce: LolRemez 0.2 released edited by sam
grammar
12:14 AM Blog: Announce: LolRemez 0.2 released created by sam
12:08 AM lolremez-0.2.tar.gz attached to oss/lolremez by sam

## Jan 9, 2012:

11:49 PM Changeset [1128] by sam
math: fix an infinite loop in the real number print function.
11:49 PM Changeset [1127] by sam
math: significant performance improvements in the Remez solver.
11:49 PM doc/maths/remez/tutorial-additional-tips edited by sam
fix tutorial for upcoming LolRemez 0.2 (diff)
11:38 PM doc/maths/remez/tutorial-fixing-parameters edited by sam
fix tutorial for upcoming LolRemez 0.2 (diff)
11:36 PM doc/maths/remez/tutorial-changing-variables edited by sam
fix tutorial for upcoming LolRemez 0.2 (diff)
11:20 PM doc/maths/remez/tutorial-relative-error edited by sam
fix tutorial for upcoming LolRemez 0.2 (diff)
11:18 PM doc/maths/remez/tutorial-exponential edited by sam
fix tutorial for upcoming LolRemez 0.2 (diff)
2:30 PM Changeset [1126] by sam
math: write a faster factorial method for use in exp() and sin(). …
2:18 PM Blog: Better function approximations: Taylor vs. Remez comment added by Gábor
@Sam, actually, I solved everything based on Euler for atan, thanks, …

## Jan 5, 2012:

6:35 PM Changeset [1125] by gary
core: throw out the idea of a disk thread, let's seem what comes from it.
6:35 PM Changeset [1124] by gary
lolremez: distribute Visual Studio files with LolRemez.
6:35 PM Changeset [1123] by gary
core: fix a few implicit 64-to-32-bit casts in the real methods.

## Jan 4, 2012:

12:27 PM Blog: Better function approximations: Taylor vs. Remez comment added by Gábor
@Sam, I only want to get arctan now, the other two can be calculated …

## Jan 3, 2012:

2:36 PM Blog: Better function approximations: Taylor vs. Remez comment added by sam
@Gábor: usually inverse trigonometric functions use the following …
12:12 PM Blog: Better function approximations: Taylor vs. Remez comment added by Gábor
Yes, it started to behave very nicely now. If only the same could be …

## Jan 2, 2012:

12:33 PM doc/lol/math/real.h edited by sam
(diff)
11:03 AM doc/lol/math/real.h edited by sam
get rid of `<<` and `>>` information (diff)
4:16 AM Blog: Better function approximations: Taylor vs. Remez comment added by sam
@Gábor: thanks for the feedback. The printout issues were a bug that …
4:14 AM Changeset [1122] by sam
real: get rid of <<= and >>= operators; we can use ldexp() instead. As …
4:14 AM Changeset [1121] by sam
real: fix a rounding bug in real number printing.

## Jan 1, 2012:

6:27 PM Blog: Better function approximations: Taylor vs. Remez comment added by anonymous
With the order above 20, I started to get real printouts like …

## Dec 31, 2011:

10:04 PM Blog: Better function approximations: Taylor vs. Remez comment added by anonymous
Definitely, thanks, very interested, I'll check it out first thing in …
12:11 AM research/trig edited by sam
(diff)

## Dec 30, 2011:

11:32 PM research/trig edited by sam
(diff)
6:55 PM Blog: Announce: LolRemez 0.1 released comment added by anonymous
Wow, this is really interesting. Not just the code itself, but I'm …
1:59 PM doc/maths/remez/tutorial-relative-error edited by sam
just a few retakes (diff)
12:49 AM doc/maths/remez/tutorial-changing-variables edited by sam
minor tweaks (diff)
12:48 AM doc/maths/remez/tutorial-relative-error edited by sam
+TOC and explicit relative error (diff)
12:46 AM doc/maths/remez/tutorial-exponential edited by sam
+TOC (diff)

## Dec 29, 2011:

8:02 PM WikiStart edited by sam
(diff)
7:59 PM WikiStart edited by sam
(diff)
7:53 PM Blog: Better function approximations: Taylor vs. Remez comment added by sam
@Gábor: Well you will be happy to learn that I made a …
7:50 PM Blog: Better function approximations: Taylor vs. Remez edited by sam
7:48 PM Blog: Announce: LolRemez 0.1 released edited by sam
7:47 PM Blog: Announce: LolRemez 0.1 released edited by sam
7:47 PM Blog: Announce: LolRemez 0.1 released created by sam
7:42 PM oss/lolremez edited by sam
(diff)
7:41 PM lolremez-0.1.tar.gz attached to oss/lolremez by sam
7:41 PM Changeset [1120] by sam
build: remove #if directives from remez.cpp when distributing LolRemez.
7:36 PM Changeset [1119] by sam
math: make everything clean for a LolRemez release.
7:36 PM Changeset [1118] by sam
core: placement new requires #include <new>, fixing that and a few …
7:36 PM Changeset [1117] by sam
math: move the Remez algorithm implementation to the core.
7:34 PM doc/maths/remez/tutorial-additional-tips edited by sam
(diff)
7:30 PM doc/maths/remez/tutorial-fixing-parameters edited by sam
C++ syntax (diff)
6:17 PM doc/maths/remez edited by sam
(diff)
6:15 PM doc/maths/remez edited by sam
(diff)
6:10 PM doc/maths/remez edited by sam
(diff)
5:50 PM doc/maths/remez edited by sam
(diff)
5:45 PM oss/lolremez edited by sam
(diff)
5:44 PM doc/maths/remez edited by sam
(diff)
5:43 PM oss/lolremez created by sam
5:39 PM oss edited by sam
(diff)
5:38 PM doc/maths/remez/tutorial-exponential edited by sam
5:37 PM doc/maths/remez/tutorial-exponential edited by sam
5:34 PM doc/maths/remez/tutorial-additional-tips edited by sam
initial document (diff)
5:33 PM doc/maths/remez/tutorial-additional-tips edited by sam
(diff)
5:33 PM doc/maths/remez/tutorial-additional-tips edited by sam
(diff)
5:32 PM doc/maths/remez/tutorial-additional-tips created by sam
4:42 PM doc/maths/remez edited by sam
(diff)
4:34 PM doc/maths/remez edited by sam
(diff)
4:31 PM doc/maths/remez/tutorial-changing-variables edited by sam
(diff)
4:15 PM error-even.png attached to doc/maths/remez/tutorial-changing-variables by sam
2:55 AM doc/maths/remez/tutorial-fixing-parameters edited by sam
(diff)
2:53 AM better-error.png attached to doc/maths/remez/tutorial-fixing-parameters by sam
2:50 AM doc/maths/remez edited by sam
(diff)
2:50 AM doc/maths/remez edited by sam
(diff)
2:49 AM doc/maths/remez/tutorial-fixing-parameters edited by sam
(diff)
2:46 AM doc/maths/remez/tutorial-fixing-parameters edited by sam
(diff)
2:45 AM bad-error.png attached to doc/maths/remez/tutorial-fixing-parameters by sam
2:44 AM doc/maths/remez/tutorial-fixing-parameters created by sam
2:09 AM doc/lol/math/real.h edited by sam
typo (diff)
2:06 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
2:06 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
2:04 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
1:59 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
1:59 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
1:57 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
1:52 AM doc/maths/remez/tutorial-changing-variables edited by sam
typo!! (diff)
1:50 AM doc/maths/remez/tutorial-changing-variables edited by sam
(diff)
1:47 AM doc/maths/remez/tutorial-changing-variables edited by sam
(diff)
1:47 AM doc/maths/remez/tutorial-changing-variables created by sam
12:33 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
12:32 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
12:30 AM doc/maths/remez/tutorial-relative-error edited by sam
(diff)
12:16 AM doc/maths/remez/tutorial-relative-error edited by sam
(diff)
12:15 AM doc/maths/remez/tutorial-relative-error edited by sam
(diff)
12:14 AM doc/maths/remez/tutorial-exponential edited by sam
(diff)
12:12 AM doc/maths/remez/tutorial-relative-error edited by sam
(diff)
12:09 AM fastexp2-error.png attached to doc/maths/remez/tutorial-relative-error by sam
12:09 AM fastexp2.png attached to doc/maths/remez/tutorial-relative-error by sam
12:08 AM doc/maths/remez/tutorial-relative-error created by sam
first shot

## Dec 28, 2011:

11:31 PM doc/maths/remez/tutorial-exponential edited by sam
(diff)
11:30 PM fastexp-error.png attached to doc/maths/remez/tutorial-exponential by sam
11:29 PM doc/maths/remez/tutorial-exponential edited by sam
(diff)
11:17 PM fastexp.png attached to doc/maths/remez/tutorial-exponential by sam
11:17 PM doc/maths/remez/tutorial-exponential edited by sam
(diff)
10:55 PM doc/maths/remez/tutorial-exponential created by sam
10:34 PM doc/maths/remez edited by sam
(diff)
10:17 PM doc/lol/math/real.h edited by sam
(diff)
10:09 PM doc/maths/remez edited by sam
(diff)
9:58 PM taylor-vs-remez.png attached to doc/maths/remez by sam
9:58 PM doc/maths/remez created by sam
6:47 PM doc/lol/math/real.h edited by sam
(diff)
6:42 PM doc/lol/math/real.h edited by sam
(diff)
6:24 PM doc/lol/math/real.h created by sam
start the real class documentation
4:16 PM doc edited by sam
(diff)
4:14 PM doc edited by sam
(diff)

## Dec 27, 2011:

8:20 PM Blog: Better function approximations: Taylor vs. Remez comment added by anonymous
Hi, Sam, I visited a friend with a Matlab and, dear me, it can't do …

## Dec 26, 2011:

9:19 PM Blog: Better function approximations: Taylor vs. Remez comment added by anonymous
Hi, Sam, I searched high and low for high precision (not actually …

## Dec 23, 2011:

3:43 AM Changeset [1116] by sam
core: fix the sign of a negative real number raised to an even power, …

## Dec 22, 2011:

9:09 PM Changeset [1115] by sam
core: allow to build a real number using a string literal.
8:34 PM Changeset [1114] by sam
core: fix compilation warnings in one of the float-to-half LUTs.
4:43 PM Blog: C/C++ trick: static lookup table generation comment added by sam
@anonymous #1: unfortunately there are two problems with this. First, …
2:42 PM Blog: C/C++ trick: static lookup table generation comment added by anonymous
U should start using D Programming-Language ;)..…
12:07 AM remez-error.png attached to Blog: Better function approximations: Taylor vs. Remez by sam
12:06 AM error-pi-8.png attached to Blog: Better function approximations: Taylor vs. Remez by sam
12:06 AM error-pi-4.png attached to Blog: Better function approximations: Taylor vs. Remez by sam
12:06 AM error-pi-2.png attached to Blog: Better function approximations: Taylor vs. Remez by sam

## Dec 21, 2011:

11:29 PM Blog: Better function approximations: Taylor vs. Remez edited by sam
11:14 PM Blog: Better function approximations: Taylor vs. Remez edited by sam
11:10 PM Blog: Better function approximations: Taylor vs. Remez edited by sam
better code layout
11:08 PM Blog: Better function approximations: Taylor vs. Remez created by sam
Initial version
11:21 AM Blog: C/C++ trick: static lookup table generation comment added by anonymous
An example of a trig lookup table (Taylor series maybe) would be excellent.

## Dec 20, 2011:

10:41 PM Blog: Understanding fast float/integer conversions edited by sam
fix syntax colouring
10:26 PM Blog: C/C++ trick: static lookup table generation edited by sam
10:21 PM Blog: C/C++ trick: static lookup table generation created by sam
Initial version

## Dec 15, 2011:

2:34 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet edited by sam
12:33 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by marco
Lol, love that article. Extremely well presented, keep up (good work, …
12:21 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by sam
@Richard: thank you for the suggestions, I will make it clearer that …
12:15 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet edited by sam
fix brainfart
12:15 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by sam
@Valentin: that is indeed a mistake! I'm gonna fix that immediately, …
11:34 AM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by anonymous
[[Image(http://lol.zoy.org/tracmath/571293ea6792e5f554ea216394ac33cd75e
11:34 AM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by Valentin Simonov
Err, about your definition of acceleration. v(t) = d p(t) / dt a(t) = …

## Dec 14, 2011:

10:24 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by Promit
Sorry, but using Verlet or RK4 is not a good idea in a physical …
Add .suo files to your ignores - it contains user preferences like …
10:09 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by Richard
Hmm, the link to the presentation didn't work. And I can't add it now …
9:55 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by Richard
Hi Sam The term "Verlet integration" is more commonly used to …
6:32 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by geolm
"Your physics will suck a lot less, I guarantee it" true but the CPU …
4:07 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by sam
@mikarnage: I would like to write another article about RK4 to …
3:47 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet comment added by mikarnage
Hi, Nice explanation, I would have liked to see the case about what …
3:06 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet edited by sam
2:58 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet edited by sam
2:44 PM Blog: Understanding basic motion calculations in games: Euler vs. Verlet edited by sam
tweaks
1:41 PM accurate-integral.png attached to Blog: Understanding basic motion calculations in games: Euler vs. Verlet by sam
1:05 PM Blog: Understanding basic motion calculations in games edited by sam
1:04 PM Blog: Understanding basic motion calculations in games edited by sam
Verlet integration trajectory
1:02 PM verlet-integration.png attached to Blog: Understanding basic motion calculations in games: Euler vs. Verlet by sam
3:23 AM Blog: Understanding basic motion calculations in games edited by sam
7th!
3:19 AM Blog: Understanding basic motion calculations in games edited by sam
be nicer to people!
2:35 AM Blog: GLSL code snippet: choosing from 4 vectors by Z value comment added by sam
@Bernard: No, I have only used the knowledge that the fragment shader …
1:41 AM Blog: Understanding basic motion calculations in games edited by sam
fix nasty HTML shit
1:37 AM Blog: Understanding basic motion calculations in games edited by sam
12:41 AM Blog: Understanding basic motion calculations in games edited by sam
12:40 AM euler-integration.png attached to Blog: Understanding basic motion calculations in games: Euler vs. Verlet by sam
12:40 AM no-rage.png attached to Blog: Understanding basic motion calculations in games: Euler vs. Verlet by sam
12:40 AM derp.png attached to Blog: Understanding basic motion calculations in games: Euler vs. Verlet by sam
12:39 AM Blog: Understanding basic motion calculations in games created by sam
initial version

## Dec 12, 2011:

7:17 PM Changeset [1112] by gary
build: minor reorganisation of the sandbox code.

## Dec 11, 2011:

12:58 PM Changeset [1110] by sam
core: prefix Entity members with m_ to avoid accidental shadowing.
Note: See TracTimeline for information about the timeline view.