AW: Q: Simplify with "much less" assumptions

*To*: mathgroup at smc.vnet.net*Subject*: [mg35619] AW: [mg35600] Q: Simplify with "much less" assumptions*From*: Matthias.Bode at oppenheim.de*Date*: Tue, 23 Jul 2002 01:51:22 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hello Heather, try: 1 + x^2 /. {x -> 0} It will give you the 1 you wish. Best regards, Matthias Bode. Von: Xuguang(Heather) Zhang [mailto:xuguang_zhang at hotmail.com] Gesendet: Montag, 22. Juli 2002 08:11 An: mathgroup at smc.vnet.net Betreff: [mg35600] Q: Simplify with "much less" assumptions Hello, everybody, I have one question regarding simplify answer with assumptions. For example, I have "1+x^2". The assumptions is x is much much less than 1. Therefore x^2 can be neglected under the above assumption. What I get after simplification should be "1" only. Can anybody tell me how do this in Mathematica? It seems there is no "much less" or "much greater" symbol in Mathematica. Thank you all. Heather