diff --git a/zajęcia 5/Book1.dat b/zajęcia 5/Book1.dat
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diff --git a/zajęcia 5/funkcje.pdf b/zajęcia 5/funkcje.pdf
new file mode 100644
index 0000000..cecfd32
Binary files /dev/null and b/zajęcia 5/funkcje.pdf differ
diff --git a/zajęcia 5/funkcje.tex b/zajęcia 5/funkcje.tex
new file mode 100644
index 0000000..16bb989
--- /dev/null
+++ b/zajęcia 5/funkcje.tex	
@@ -0,0 +1,96 @@
+\documentclass[11pt]{beamer}
+\usepackage{ucs}
+\usetheme{Warsaw}
+\usepackage[utf8]{inputenc}
+\usepackage{polski}
+\usepackage{amsmath}
+\usepackage{amsfonts}
+\usepackage{amssymb}
+\usepackage{graphicx}
+\usepackage{tikz}
+\usepackage{mathtools}
+\usepackage{amsmath}
+\usepackage{amsthm}
+\usepackage{tikz}
+\usepackage{pgfplots}
+
+\newtheorem{tw}{Twierdzenie}
+%\theoremstyle{definition}
+%\newtheorem{definition}{Definicja}
+
+\author{Izabela Kosmala}
+\title{Wykresy funkcji}
+%\subtitle{}
+\institute{Uniwersytet im. Adama Mickiewicza} 
+\date{09.11.2017 r.} 
+
+\begin{document}
+
+\begin{frame}
+\titlepage
+\end{frame}
+
+\begin{frame}{\(x\mapsto x^2-2x+3\)}
+
+\begin{tikzpicture}
+\begin{axis}[
+axis x line=center ,
+axis y line=center ,
+xtick ={-10,-9,...,10},
+ytick ={1,2,...,10},
+xlabel ={$x$},
+ylabel ={$y$},
+xlabel  style ={ below  right},
+ylabel  style ={ right},
+xmin=-10.5,
+xmax =10.5,
+ymin=-0.5,
+ymax =10.5,
+title={Wykres funkcji \(x\mapsto x^2-2x+3\)}
+]
+\addplot[color=black ,line width =0.5pt ,smooth,domain=-10:10] plot(\x,\x^2-2*\x+3);
+\end{axis}
+
+\end{tikzpicture}
+
+\end{frame}
+
+
+\begin{frame}{\( x\mapsto \cos 2x\)}
+\begin{tikzpicture}
+
+\draw[domain =0:2*pi,smooth] plot(\x,{cos(2*\x r)});
+
+\end{tikzpicture}
+\end{frame}
+
+\begin{frame}{\( x\mapsto\sin \tfrac{1}{x}\)}
+\begin{tikzpicture}
+\begin{axis}[]
+\addplot[smooth] gnuplot[raw  gnuplot ]{
+plot[-10:10] sin(1/x)
+};
+\end{axis}
+\end{tikzpicture}
+\end{frame}
+
+\begin{frame}{\( (x,y)\mapsto x^2+y^2\)}
+\begin{tikzpicture}
+\begin{axis}[colorbar]
+\addplot3[surf,domain=-360:360,samples=50]{x^2+y^2};
+\end{axis}
+\end{tikzpicture}
+\end{frame}
+
+\begin{frame}{\((x,y)\mapsto x^2−y^2 + 2 x y ^2+1\)}
+\begin{tikzpicture}
+\begin{axis}[colorbar]
+\addplot3[surf]
+table[] {"Book1.dat"};
+\end{axis}
+\end{tikzpicture}
+
+
+\end{frame}
+
+\end{document}
\ No newline at end of file