added curve fittign problems.

Lab.bib

@@ -23,6 +23,14 @@
       url = "http://www.black-holes.org/waveforms/"
       url = "http://www.black-holes.org/waveforms/"
 }
 }
 
 
+@misc{SNCosmology,
+      url = "https://supernova.lbl.gov/"
+}
+
+@misc{sndata,
+      url = "https://home.icts.res.in/~ajith/Downloads/SCPUnion2.1_mu_vs_z.txt"
+}
+
 @article{Porto:2010zg,
 @article{Porto:2010zg,
       author         = "Porto, Rafael A. and Ross, Andreas and Rothstein, Ira Z.",
       author         = "Porto, Rafael A. and Ross, Andreas and Rothstein, Ira Z.",
       title          = "{Spin induced multipole moments for the gravitational
       title          = "{Spin induced multipole moments for the gravitational

Lab.tex

@@ -89,6 +89,12 @@
 \section{Ordinary differential equations: Two-point boundary value problems}
 \section{Ordinary differential equations: Two-point boundary value problems}
 \input{ode_bvp.tex}
 \input{ode_bvp.tex}
 
 
+\section{Fourier and spectral methods}
+\input{fourier.tex}
+
+\section{Curve fitting}
+\input{curve.tex}
+
 
 
 %\section{Lab 2}
 %\section{Lab 2}
 %\input{rest.tex}
 %\input{rest.tex}