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| | size(216); | | size(216); |
| | | | |
| − | real e = 2.718281828459045235360287471352662497757247093699959574966967627724076630353;
| + | draw((0,10)--(0,0)--(10,0)); draw((5,10)--(0,0)--(10,5)); |
| − | real pi = 3.141592653589793238462643383279502884197169399375105820974944592307816406286;
| + | label("$ct$",(0,10),N); label("$x$",(10,0),E); |
| | + | label("$ct'$",(5,10),N); label("$x'$",(10,5),E); |
| | | | |
| − | //xaxis(-1,5);
| + | dot((0,3),blue); dot((3,6),blue); draw((0,3)--(3,6),blue); |
| − | //yaxis(-1,5);
| + | label("$ct_1$",(0,3),W,blue); label("$ct_2'$",(3,6),NW,blue); |
| − | | |
| − | //real f(real x) { return abs(x); }
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| − | | |
| − | draw((2,3)--(0,0)--(4,0),Arrows); draw((0,0)--(2,0),EndArrow); draw((2,0)--(2,3),dashed); draw(rightanglemark((4,0),(2,0),(2,3),4));
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| − | | |
| − | label("$\mathbf{a}$",(4,0),E); label("$\mathbf{b}$",(2,3),NE); label("$\mathbf{b}_{\parallel}$",(2,0),S); label("$\theta$",(0.3,0.1),NE); | |
| − | | |
| − | //limits((-1,-4),(6,6),Crop);
| |
| − | </asy>
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| − | | |
| − | <asy>
| |
| − | import three; import graph3;
| |
| − | currentprojection=orthographic(4,-4,1);
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| − | size(288);
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| − | | |
| − | //xaxis3("$A$",0,3);
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| − | //yaxis3("$A'$",0,3);
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| − | zaxis3("$\hat{\mathbf{n}}$",0,1);
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| − | | |
| − | draw((3,0,0)--(0,4,0)--(-3,0,0)--(0,-4,0)--cycle); draw((1,0,1)--(0,0,0)--(1,0,-1)); draw((0,0,0)--(1,0,0)); draw((1,0,1)--(1,0,-1),dashed);
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| − | | |
| − | label("$\mathbf{x}$",(1,0,1),E); label("$\mathbf{x}'$",(1,0,-1),E);
| |
| | </asy> | | </asy> |
![[asy] size(216); draw((0,10)--(0,0)--(10,0)); draw((5,10)--(0,0)--(10,5)); label("$ct$",(0,10),N); label("$x$",(10,0),E); label("$ct'$",(5,10),N); label("$x'$",(10,5),E); dot((0,3),blue); dot((3,6),blue); draw((0,3)--(3,6),blue); label("$ct_1$",(0,3),W,blue); label("$ct_2'$",(3,6),NW,blue); [/asy]](http://latex.artofproblemsolving.com/5/a/a/5aa32b4b39ea87966619720471695320b8335aa8.png)
