Why the Interpolation function cannot make a serious of points be linked smoothly?

*To*: mathgroup at smc.vnet.net*Subject*: [mg28350] Why the Interpolation function cannot make a serious of points be linked smoothly?*From*: liwen liwen <gzgear at yahoo.com>*Date*: Thu, 12 Apr 2001 02:18:13 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Dear friends; How are you! Interpolation function is able to make a serious of points to be linked smoothly, but now I find the following Interpolation function is not able to be linked smoothly, what is the matter? data1 = {{0, 0}, {1.3, 1}, {2, 3}, {2.3, 5}, {5.678, 7}, {7, 9}, {8, 12}, {12, 18}}; data2 = {{0, 0}, {1.3, 1}, {2, 3}, {2.7, 5}, {5.678, 7}, {7, 9}, {8, 12}, {12, 18}}; f1 = Interpolation[data1]; f2 = Interpolation[data2]; g1 = Plot[f1[x], {x, 0, 12}]; g2 = Plot[f2[x], {x, 0, 12}]; Show[g1, g2] the data2 can be linked smoothly, but data1 not. I just change the {2.7,5} to {2.3,5}. Thank you very much! E-mail: gzgear at yahoo.com __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/