User:5849206328x: Difference between revisions

Revision as of 20:42, 20 July 2015

$[asy] import slopefield; //size(288); real e = 2.718281828459045235360287471352662497757247093699959574966967627724076630353; real pi = 3.141592653589793238462643383279502884197169399375105820974944592307816406286; // Label f; // f.p=fontsize(6); //xaxis(0,5); //yaxis(-2,3); //real f(real x) { return 3 * (-1/x + 1/(2*x^2)); } pair g(real t) { return 16/(5/3 * cos(pi * t/180) - 1) * dir(t); } draw(graph(g,-40,45),MidArrow); pair A = (48/5,36/5); draw((-15,-40)--(45,40)); draw((-15,40)--(45,-40)); dot((0,0)); draw(A--(0,0)--(15,0),dashed); draw(rightanglemark((0,0),A,(15,0),20)); label("$O$",(0,0),S); label("$b$",A/2,NW); label("$2\alpha$",(16,0),E); label("$\beta$",(15,1),N); label("$ea$",(7,0),S); limits((-25,-25),(50,25),Crop); // e = 5/3, l = 16, a = 9, b = 12 [/asy]$

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User:5849206328x: Difference between revisions

Revision as of 20:42, 20 July 2015

@@ Line 13: / Line 13: @@
 //real f(real x) { return 3 * (-1/x + 1/(2*x^2)); }
-pair g(real t) { return 16/(1 + cos(pi * t/180)) * dir(t); }
+pair g(real t) { return 16/(5/3 * cos(pi * t/180) - 1) * dir(t); }
-draw(graph(g,-150,150));
+draw(graph(g,-40,45),MidArrow);
-pair A = (5, 4 * sqrt(6));
+pair A = (48/5,36/5);
-draw((-25,0)--(25,0)); draw((16,-25)--(16,25)); draw((0,0)--(0,16),dashed);
+draw((-15,-40)--(45,40)); draw((-15,40)--(45,-40));
-dot((0,0)); draw((0,0)--A--(A + (-2.5,4.1)),EndArrow); dot(A);
+dot((0,0)); draw(A--(0,0)--(15,0),dashed); draw(rightanglemark((0,0),A,(15,0),20));
-label("$O$",(0,0),S); label("$l/2$",(4,0),S); label("$l/2$",(12,0),S); label("$l$",(0,8),W);
+label("$O$",(0,0),S); label("$b$",A/2,NW); label("$2\alpha$",(16,0),E); label("$\beta$",(15,1),N); label("$ea$",(7,0),S);
-label("$\mathbf{r}$",A/2,NW); label("$\theta$",(0.7,0),NE); label("$m$",A,NE);
-limits((-25,-25),(25,25),Crop);
+limits((-25,-25),(50,25),Crop);
+// e = 5/3, l = 16, a = 9, b = 12
 </asy>