Sharedwww / talks / circles / example.texOpen in CoCalc
Author: William A. Stein
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\documentclass[12pt]{article}
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\usepackage{pstricks}
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\pagestyle{empty}
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\textwidth=1.2\textwidth
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\hoffset=-.7in
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\textheight=1.2\textheight
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\voffset=-.9in
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\begin{document}
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{\LARGE$$y^2 = x^3 + 1$$}
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\begin{center}
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\psset{unit=.75in}
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\pspicture(-2,-5)(5,5)
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\psgrid[gridcolor=gray]
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\pscircle*[linecolor=red](2,3){0.1}\rput(2.5,3){$(2,3)$}
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\pscircle*[linecolor=red](0,1){0.1}\rput(0.5,1){$(0,1)$}
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\psline[linewidth=0.03]{->}(-2,0)(5,0)\rput(5.2,0){$x$}
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\psline[linewidth=0.03]{->}(0,-5)(0,5)\rput(0,5.2){$y$}
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\pscurve[linecolor=blue]
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(2.8500,4.9141)
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(2.8000,4.7908)
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(2.7500,4.6687)
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(2.7000,4.5478)
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(2.6500,4.4282)
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(2.6000,4.3099)
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(2.5500,4.1930)
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(2.5000,4.0773)
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(2.4500,3.9631)
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(2.4000,3.8502)
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(2.3500,3.7387)
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(2.3000,3.6286)
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(2.2500,3.5200)
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(2.2000,3.4129)
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(2.1500,3.3073)
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(2.1000,3.2032)
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(2.0500,3.1008)
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(2.0000,3.0000)
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(1.9500,2.9008)
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(1.9000,2.8033)
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(1.8500,2.7077)
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(1.8000,2.6138)
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(1.7500,2.5217)
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(1.7000,2.4316)
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(1.6500,2.3435)
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(1.6000,2.2574)
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(1.5500,2.1734)
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(1.5000,2.0916)
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(1.4500,2.0121)
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(1.4000,1.9349)
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(1.3500,1.8602)
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(1.3000,1.7880)
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(1.2500,1.7184)
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(1.2000,1.6516)
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(1.1500,1.5877)
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(1.1000,1.5267)
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(1.0500,1.4688)
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(1.0000,1.4142)
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(0.95000,1.3628)
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(0.90000,1.3149)
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(0.85000,1.2704)
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(0.80000,1.2296)
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(0.75000,1.1924)
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(0.70000,1.1588)
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(0.65000,1.1289)
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(0.60000,1.1027)
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(0.55000,1.0799)
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(0.50000,1.0606)
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(0.45000,1.0445)
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(0.40000,1.0315)
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(0.35000,1.0212)
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(0.30000,1.0134)
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(0.25000,1.0077)
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(0.20000,1.0039)
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(0.15000,1.0016)
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(0.10000,1.0005)
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(0.050000,1.0000)
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(0,1.0000)
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(-0.050000,0.99993)
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(-0.10000,0.99950)
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(-0.15000,0.99831)
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(-0.20000,0.99599)
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(-0.25000,0.99215)
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(-0.30000,0.98640)
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(-0.35000,0.97832)
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(-0.40000,0.96747)
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(-0.45000,0.95335)
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(-0.50000,0.93541)
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(-0.55000,0.91303)
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(-0.60000,0.88543)
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(-0.65000,0.85169)
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(-0.70000,0.81055)
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(-0.75000,0.76034)
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(-0.80000,0.69857)
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(-0.85000,0.62118)
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(-0.90000,0.52057)
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(-0.95000,0.37765)
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(-1.0000,0)
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(-1.0000,0)
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(-0.95000,-0.37765)
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(-0.90000,-0.52057)
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(-0.85000,-0.62119)
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(-0.80000,-0.69857)
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(-0.75000,-0.76034)
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(-0.70000,-0.81055)
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(-0.65000,-0.85169)
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(-0.60000,-0.88544)
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(-0.55000,-0.91303)
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(-0.50000,-0.93541)
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(-0.45000,-0.95335)
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(-0.40000,-0.96747)
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(-0.35000,-0.97833)
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(-0.30000,-0.98641)
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(-0.25000,-0.99216)
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(-0.20000,-0.99599)
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(-0.15000,-0.99831)
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(-0.10000,-0.99950)
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(-0.050000,-0.99994)
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(0,-1.0000)
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(0.050000,-1.0000)
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(0.10000,-1.0005)
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(0.15000,-1.0016)
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(0.20000,-1.0039)
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(0.25000,-1.0077)
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(0.30000,-1.0134)
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(0.35000,-1.0212)
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(0.40000,-1.0315)
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(0.45000,-1.0445)
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(0.50000,-1.0606)
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(0.55000,-1.0799)
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(0.60000,-1.1027)
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(0.65000,-1.1289)
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(0.70000,-1.1588)
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(0.75000,-1.1924)
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(0.80000,-1.2296)
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(0.85000,-1.2704)
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(0.90000,-1.3149)
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(0.95000,-1.3628)
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(1.0000,-1.4142)
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(1.0500,-1.4688)
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(1.1000,-1.5267)
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(1.1500,-1.5877)
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(1.2000,-1.6516)
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(1.2500,-1.7184)
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(1.3000,-1.7880)
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(1.3500,-1.8602)
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(1.4000,-1.9349)
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(1.4500,-2.0121)
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(1.5000,-2.0916)
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(1.5500,-2.1734)
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(1.6000,-2.2574)
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(1.6500,-2.3435)
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(1.7000,-2.4316)
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(1.7500,-2.5217)
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(1.8000,-2.6138)
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(1.8500,-2.7077)
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(1.9000,-2.8034)
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(1.9500,-2.9008)
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(2.0000,-3.0000)
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(2.0500,-3.1008)
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(2.1000,-3.2032)
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(2.1500,-3.3073)
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(2.2000,-3.4129)
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(2.2500,-3.5200)
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(2.3000,-3.6286)
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(2.3500,-3.7387)
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(2.4000,-3.8502)
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(2.4500,-3.9631)
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(2.5000,-4.0773)
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(2.5500,-4.1930)
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(2.6000,-4.3100)
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(2.6500,-4.4282)
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(2.7000,-4.5478)
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(2.7500,-4.6687)
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(2.8000,-4.7908)
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(2.8500,-4.9141)
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\endpspicture
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\vspace{.5in}
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Add $(0,1)$ and $(2,3)$ together!
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\end{center}
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\end{document}
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