Difference between revisions of "User:5849206328x"
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//real f(real x) { return 3 * (-1/x + 1/(2*x^2)); } | //real f(real x) { return 3 * (-1/x + 1/(2*x^2)); } | ||
| − | pair g(real t) { return 16/(1 + | + | pair g(real t) { return 16/(1 + cos(pi * t/180)) * dir(t); } |
| − | draw(graph(g,- | + | draw(graph(g,-150,150)); |
| − | pair A = (4 | + | pair A = (5, 4 * sqrt(6)); |
| − | draw((-25,0)--(25,0)); draw(( | + | draw((-25,0)--(25,0)); draw((16,-25)--(16,25)); draw((0,0)--(0,16),dashed); |
| − | dot((0,0)); draw((0,0)--A--(A + (- | + | dot((0,0)); draw((0,0)--A--(A + (-2.5,4.1)),EndArrow); dot(A); |
| − | |||
| − | |||
| − | label("$O$",(0,0),S); label("$ | + | label("$O$",(0,0),S); label("$l/2$",(4,0),S); label("$l/2$",(12,0),S); label("$l$",(0,8),W); |
| − | label("$\mathbf{r}$",A/2,NW); label("$\theta$",(0. | + | 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),(25,25),Crop); | ||
| − | |||
| − | |||
| − | |||
</asy> | </asy> | ||
Revision as of 14:58, 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/(1 + cos(pi * t/180)) * dir(t); } draw(graph(g,-150,150)); pair A = (5, 4 * sqrt(6)); draw((-25,0)--(25,0)); draw((16,-25)--(16,25)); draw((0,0)--(0,16),dashed); dot((0,0)); draw((0,0)--A--(A + (-2.5,4.1)),EndArrow); dot(A); label("$O$",(0,0),S); label("$l/2$",(4,0),S); label("$l/2$",(12,0),S); label("$l$",(0,8),W); label("$\mathbf{r}$",A/2,NW); label("$\theta$",(0.7,0),NE); label("$m$",A,NE); limits((-25,-25),(25,25),Crop); [/asy]](http://latex.artofproblemsolving.com/a/2/b/a2b9ff762bd8303c6850e22926c6a7064c6eaa85.png)
