: Here we display the ball height over time calculated by the model. You can see that after the first bounce, the calculations start to differ significantly showing the effect of the fixed step used by the model.  
 
: Here we display the ball height over time calculated by the model. You can see that after the first bounce, the calculations start to differ significantly showing the effect of the fixed step used by the model.  
 
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Unexpected non-MediaWiki exception encountered, of type "Error"
[e6513fb8] /swbwiki/index.php?title=FAQ&diff=prev&oldid=1213 Exception from line 436 of /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php: Call to undefined function each()
Backtrace:
#0 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(546): DiffEngine->diag()
#1 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(347): DiffEngine->compareSeq()
#2 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(228): DiffEngine->diffLocal()
#3 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(725): DiffEngine->diff()
#4 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(864): Diff->__construct()
#5 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(987): MappedDiff->__construct()
#6 /var/www/html/mediawiki-1.23.3/includes/diff/TableDiffFormatter.php(193): WordLevelDiff->__construct()
#7 /var/www/html/mediawiki-1.23.3/includes/diff/DiffFormatter.php(143): TableDiffFormatter->changed()
#8 /var/www/html/mediawiki-1.23.3/includes/diff/DiffFormatter.php(83): DiffFormatter->block()
#9 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(910): DiffFormatter->format()
#10 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(813): DifferenceEngine->generateTextDiffBody()
#11 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(743): DifferenceEngine->generateContentDiffBody()
#12 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(665): DifferenceEngine->getDiffBody()
#13 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(635): DifferenceEngine->getDiff()
#14 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(443): DifferenceEngine->showDiff()
#15 /var/www/html/mediawiki-1.23.3/includes/Article.php(826): DifferenceEngine->showDiffPage()
#16 /var/www/html/mediawiki-1.23.3/includes/Article.php(549): Article->showDiffPage()
#17 /var/www/html/mediawiki-1.23.3/includes/actions/ViewAction.php(44): Article->view()
#18 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(428): ViewAction->show()
#19 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(292): MediaWiki->performAction()
#20 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(588): MediaWiki->performRequest()
#21 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(447): MediaWiki->main()
#22 /var/www/html/mediawiki-1.23.3/index.php(46): MediaWiki->run()
#23 {main}