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	Math Help Forum > Math Resources > Mathematics Software Discussion Substitution of variables in Mathematica User Name Save? Password Register Forum Rules FAQ Donate Members List Arcade Download MHF Flyer Search Today's Posts Mark Forums Read   Thread Tools Display Modes   #1   October 31st, 2009, 11:37 AM liranoren Newbie   Join Date: Oct 2009 Posts: 1 Country: Thanks: 0 Thanked 0 Times in 0 Posts Substitution of variables in Mathematica I have the expression: (cx^2-c^3t^2)/6 For which I am trying to substitute ct/x -> nu To get cx^2(1-nu^2)/6 Can easily do this by hand, but how would you do this in Mathematica? Advertisement     #2   November 1st, 2009, 07:10 AM shawsend Super Member   Join Date: Aug 2008 Posts: 601 Country: Thanks: 46 Thanked 261 Times in 226 Posts (c*x^2 - c^3*t^2)/6 /. t -> (x*nu)/c __________________ "I am beset by the ironies in my life" Tags mathematica « Stimulink, pendulum question | Top | Does this look right? » Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are Off Refbacks are Off Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Pre-University Math Help     Pre-Algebra and Algebra     Geometry     Trigonometry     Pre-Calculus     Basic Statistics and Probability     Other topics University Math Help     Calculus     Analysis, Topology and Differential Geometry     Linear and Abstract Algebra     Number theory     Discrete Mathematics, Set Theory and Logic     Advanced Probability and Statistics     Advanced Applied Math     Differential Equations     Business Math     Other Advanced Topics Math Resources     LaTex Help     Mathematics Software Discussion     Calculator Discussion     Useful Math Websites     Mathematics News MHF Lounge     Chat Room         Live Chat     Problem of the Week     Pre-prints and other original work     Formal Debates         Proposals Challenges and Puzzles     Puzzles     Math Challenge Problems MHF Feedback and Announcements Forum     Question, Feedback and Comments     Announcements Our Other "Help Forums"     Physics Help Forum     Chemistry Help Forum All times are GMT -7. The time now is 08:15 AM. Contact Us - Math Help - Archive - Top Powered by vBulletin® Version 3.7.3 Copyright ©2000 - 2009, Jelsoft Enterprises Ltd. SEO by vBSEO 3.2.0 ©2008, Crawlability, Inc. ©2005 - 2009 Math Help Forum

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