All Forums  Origin Forum  Origin Forum  Very basic question - integration

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Karmar[/i] [br]Hi, I want to integrate the data from fitting to linear equation f(x) = ax + b. When I calculate this manually, i.e., F(x) = 0.5ax^2+bx I get different curve then when I do this in Origin (see picture)! Where have I made an error? Thanks. Karmar [img]https://my.originlab.com/ftp/forum_and_kbase/Images/CPDH123.jpg[/img] [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.