http://en.wikipedia.org/wiki/Curve_fitting

http://www.ce.ufl.edu/~kgurl/Classes/Lect3421/NM5_curve_s02.pdf

http://www.csupomona.edu/~seskandari/documents/Curve_Fitting_William_Lee.pdf

http://zeus.df.ufcg.edu.br/labfit/

http://www.swarthmore.edu/NatSci/echeeve1/Ref/MatlabCurveFit/MatlabCftool.html

http://www.uccs.edu/~eboggess/Math2650Lab7.pdf

http://en.wikipedia.org/wiki/Least_squares

http://dwb4.unl.edu/chem/chem869y/chem869ymats/least_squares.html

http://www.uwyo.edu/ceas/classes/meref/curve_fitting.pdf

http://libraries.maine.edu/Spatial/gisweb/spatdb/acsm/ac94053.html

http://maxwell.ucsc.edu/~drip/133/ch3.pdf

http://www.math.uiuc.edu/~franklan/Math416_LeastSquares.pdf

http://www.google.com/url?sa=t&rct=j&q=least%20squares%20curve%20fitting&source=web&cd=40&cad=rja&ved=0CFsQFjAJOB4&url=http%3A%2F%2Fwww.gh.wits.ac.za%2Fchemnotes%2Fhonours%2F6-Least%2520Squares%2520Curve%2520Fitting.doc&ei=CTvEUf7MJYzcsgbH2YCQCA&usg=AFQjCNGfdsI1povBeIOELlcd1-uLfBeWNw&bvm=bv.48293060,d.Yms

http://www.angelfire.com/ak4/neurope/ls.html

http://www.mafy.lut.fi/study/NLOpt/fitting.pdf

http://www.google.com/url?sa=t&rct=j&q=least+squares+curve+fitting+example&source=web&cd=10&cad=rja&ved=0CF4QFjAJ&url=http%3A%2F%2Fwww.queensu.ca%2Fneuroscience%2Fapps%2FMatlab%2FMatlabLect11.ppt&ei=3DvEUazaI9D3sgbAjoGIDw&usg=AFQjCNEtwJrM6d4C6a4hUfvDQDL4PNpicA&bvm=bv.48293060,d.Yms

http://statpages.org/nonlin.html

http://www-ee.ccny.cuny.edu/www/web/yltian/Engr%20103%20Lesson%2014.PDF

http://www.efunda.com/math/leastsquares/leastsquares.cfm

http://www.prz.rzeszow.pl/~janand/

http://www.faculty.umassd.edu/michele.mandrioli/424book/fchm10.3.html

http://mathworld.wolfram.com/LeastSquaresFittingPolynomial.html

http://www.google.com/url?sa=t&rct=j&q=weighted%20least%20square%20method%20for%20curve%20fitting&source=web&cd=17&cad=rja&ved=0CEwQFjAGOAo&url=http%3A%2F%2Fwww2.imm.dtu.dk%2Fpubdb%2Fviews%2Fedoc_download.php%2F2804%2Fpdf%2Fimm2804.pdf&ei=IEHEUfaYF87DtAaKg4HoCQ&usg=AFQjCNFYm1qfKI6JmULo6l4a6QiwMJkphQ&bvm=bv.48293060,d.Yms

http://scholar.noctrl.edu/dahorner/links/weighted-least-squares-example

http://www.stat.cmu.edu/~cshalizi/350/lectures/18/lecture-18.pdf

http://www.utdallas.edu/~herve/Abdi-LeastSquares-pretty.pdf