Difference of two squares without words

math/differenze_quadrati.tex

@@ -0,0 +1,45 @@
+\documentclass{standalone}
+%
+\usepackage{tikz}
+\usetikzlibrary{backgrounds}
+\usepackage{tkz-euclide}
+\usetkzobj{all}
+%
+\usepackage{amsmath}
+%
+\usepackage{xcolor}
+%
+\definecolor{space}{HTML}{0A2543}
+\definecolor{earth}{HTML}{0089FA}
+\definecolor{moon}{HTML}{AFAFAF}
+%
+\title{Difference of two squares}
+\begin{document}
+	\begin{tikzpicture}[background rectangle/.style={fill=white},show background rectangle]
+		\begin{scope}
+			\tkzDefPoint(0,0){A}
+			\tkzDefPoint(5,0){B}
+			\tkzDefSquare(A,B)
+			\tkzDrawSquare[color=space,fill=space](A,B)
+			%
+			\tkzDefPoint(3,0){C}
+			\tkzDefSquare(A,C)
+			\tkzDrawSquare[color=moon, opacity=0.5,fill=moon](A,C)
+			%
+			\tkzDefPoint(3,5){C1}
+			\tkzDrawSegment[color=white, dashed](C,C1)
+		\end{scope}
+		%
+		\begin{scope}[shift={(6,3)}]
+			\tkzDefPoint(0,0){D}
+			\tkzDefPoint(8,2){F}
+			\tkzDefPoint(8,0){E}
+			\tkzDefPoint(0,2){G}
+			\tkzDrawPolygon[color=earth,fill=earth](D,E,F,G)
+			%
+			\tkzDefPoint(3,0){B1}
+			\tkzDefPoint(3,2){B2}
+			\tkzDrawSegment[color=white, dashed](B1,B2)
+		\end{scope}
+	\end{tikzpicture}
+\end{document}

math/pdf/differenze_quadrati.pdf

@@ -0,0 +1,78 @@
+%PDF-1.5
+%ÐÔÅØ
+6 0 obj
+<<
+/Length 325       
+/Filter /FlateDecode
+>>
+stream
+xÚ½TËNÄ0¼÷+ü;NR÷¶À¡ç…#â€m9ì"ü>nú̪!UHQl<51>·3Ž‚P
B™áŠ%Ýœñ"í~8gЊbY††ñð5¬‹jð&Ö:èìy"[ëN<>9$ãç<w§|Ÿ.×ÖGÈöq]ºµßhGã‹<5áA„gx
4ou¹°¬!9Oª ±Ájýc9ŸûªVs±½#G&g‡.§10x§æH¨V÷ÿÃ?H°
®mÃ:Ws¼ý¬Ž»‡;mÕw^»péäHñ•¯íÄéãÞi¥Çsʬ1¥¤´¦îm_”üÑy!N†õ”^ßÍg¤ŽçÜzµ…è'ãp®Á¨íH¹ö”0ȨL¸F¼gNÄЄàÐâÏ—t“±Xï
Y²’PXC§g4¼€|4ÐÊÃú|&-
+endstream
+endobj
+5 0 obj
+<<
+/Type /Page
+/Contents 6 0 R
+/Resources 4 0 R
+/MediaBox [0 0 406.027 150.909]
+/Parent 7 0 R
+>>
+endobj
+4 0 obj
+<<
+ /ColorSpace 3 0 R /Pattern 2 0 R /ExtGState 1 0 R 
+/ProcSet [ /PDF ]
+>>
+endobj
+1 0 obj
+<< /pgf@CA0.5 << /CA 0.5 >> /pgf@ca0.5 << /ca 0.5 >>>>
+endobj
+2 0 obj
+<<>>
+endobj
+3 0 obj
+<<  /pgfprgb [/Pattern /DeviceRGB] >>
+endobj
+7 0 obj
+<<
+/Type /Pages
+/Count 1
+/Kids [5 0 R]
+>>
+endobj
+8 0 obj
+<<
+/Type /Catalog
+/Pages 7 0 R
+>>
+endobj
+9 0 obj
+<<
+/Producer (MiKTeX pdfTeX-1.40.20)
+/Creator (TeX)
+/CreationDate (D:20200709232045+02'00')
+/ModDate (D:20200709232045+02'00')
+/Trapped /False
+/PTEX.Fullbanner (This is MiKTeX-pdfTeX 2.9.7029 (1.40.20))
+>>
+endobj
+xref
+0 10
+0000000000 65535 f 
+0000000622 00000 n 
+0000000692 00000 n 
+0000000712 00000 n 
+0000000531 00000 n 
+0000000419 00000 n 
+0000000015 00000 n 
+0000000765 00000 n 
+0000000822 00000 n 
+0000000871 00000 n 
+trailer
+<< /Size 10
+/Root 8 0 R
+/Info 9 0 R
+/ID [<C4A988C7874B5E6793CEB0093CACA83B> <C4A988C7874B5E6793CEB0093CACA83B>] >>
+startxref
+1092
+%%EOF