2023-08-07 20:05:52 +0100 | received badge | ● Good Question (source) |
2023-08-07 20:05:34 +0100 | received badge | ● Good Answer (source) |
2023-08-07 20:05:34 +0100 | received badge | ● Enlightened (source) |
2021-04-12 09:01:14 +0100 | received badge | ● Famous Question (source) |
2020-07-25 14:09:07 +0100 | received badge | ● Famous Question (source) |
2019-07-23 07:28:36 +0100 | received badge | ● Popular Question (source) |
2019-07-23 07:28:36 +0100 | received badge | ● Notable Question (source) |
2018-12-20 21:53:03 +0100 | received badge | ● Famous Question (source) |
2017-02-16 20:29:57 +0100 | received badge | ● Notable Question (source) |
2016-06-21 21:40:25 +0100 | received badge | ● Notable Question (source) |
2016-03-30 11:12:06 +0100 | received badge | ● Famous Question (source) |
2015-03-05 23:19:47 +0100 | received badge | ● Popular Question (source) |
2015-02-16 15:02:06 +0100 | received badge | ● Nice Question (source) |
2015-02-16 14:32:07 +0100 | received badge | ● Popular Question (source) |
2014-06-29 03:15:04 +0100 | marked best answer | printing equations in latex inside cell How can I print equation in latex inside a cell in the sage's browser interface? The %latex command converts the entire cell to latex. I only want to print certain equations in latex. The latex(eqn) prints out the eqn in latex syntax, but it is not rendering and showing me the eqn in latex fonts. I tried out the function 'view()'. It also is giving me the syntax as output, not the rendered latex eqn. |
2014-06-29 03:15:00 +0100 | marked best answer | Dropping higher powers of a variable in an expression Many a times in symbolic manipulations, I end up with lots of terms of higher powers of a variable. Is there a command to drop all the terms above a given power from a symbolic expression? Eg: from an expression f(x)= x+ x^2 + x^3 + x^4 I want to get only upto 2nd order. i.e. g(x)= x + x^2 I also want to do this on a symbolic matrix. This will be very useful for simplifying expressions upto lower order terms for further calculations. |
2014-06-29 03:14:59 +0100 | marked best answer | 3d polar plot I have to do a 3d polar plot. i.e. I have to make a 3d plot by rotating a 2d polar plot along the vertical axis. The polar plot is of the form r=f(theta). But the polar_plot function in sage gives me only 2d plot. How do I get a 3D version of it? I tried spherical_plot but it is not giving me the plot which I expect to be equivalent to the revolution surface I get from rotating the 2d polar plot along vertical axis. Example: I wanted to plot this Is not giving me that. It is giving me another shape instead. Or Another Example: polar_plot of cos(theta) I want to do a 3d polar plot of this to get a doughnut shape I shall also give another example with pictures. The following plot is what I wanted using spherical3d plot But in sage, giving the same command is giving me this plot instead. What command should I give in sage to get a plot like the one we get from Mathematica? |
2014-06-29 03:14:49 +0100 | marked best answer | Physics constants in sage. Hi, Are Physics constants like h (planks constant) , k (Boltzmann constant) etc.. available in sage? If yes, how can i use them? When i searched I found only math constants Pi, e etc.. -Thanks indiajoe |
2014-01-14 17:38:56 +0100 | received badge | ● Notable Question (source) |
2013-12-06 01:17:07 +0100 | received badge | ● Famous Question (source) |
2013-05-09 18:57:51 +0100 | received badge | ● Great Question (source) |
2013-02-18 21:35:38 +0100 | received badge | ● Popular Question (source) |
2013-01-26 04:41:32 +0100 | received badge | ● Notable Question (source) |
2012-12-14 02:29:32 +0100 | commented answer | evaluvating variable inside a function while integrating @ndomes: Thankyou, This is fine. but i would have preferred something more simply to integrate a piecewise defined function. So that all the limits of function changes are defined inside the function and the outside integrations commands are independent of what was inside the function. |
2012-12-13 07:59:31 +0100 | commented answer | evaluvating variable inside a function while integrating I tried the Piecewise() function but now getting a Value error (Details I have updated in question) |
2012-12-13 07:26:37 +0100 | commented answer | evaluvating variable inside a function while integrating @ndomes : Thanks for the help. But what i really want is the function T2(x) to give different function output corresponding to the value of x. It is a piecewise defined function. How can i do that? |
2012-12-13 01:54:10 +0100 | asked a question | evaluvating variable inside a function while integrating I got a strange problem. The code to reproduce the problem is given below The problem is inside the T2() function. Since the integral in x is from 7 to 2150, The if condition should get satisfied. and return the a(x*-0.53) . But instead it is evaluating the else condition. print x is printing the alphabet 'x' instead of the value of variable x it is supposed to take during each point in integral. I guess i have understood how these functions work inside an integral wrongly. What is it that I am doing wrong here? Update: I instead tried the Piecewise() function to define T2() as follows, but inside the integral function I am getting ValueError
|
2012-11-28 17:04:39 +0100 | marked best answer | def f(x): evaluvates individually but not inside plot Using |
2012-11-28 17:04:33 +0100 | commented answer | def f(x): evaluvates individually but not inside plot @calc314 Thankyou very much. This works for me. Though I am still curious why the integral() function didn't work. |
2012-11-28 13:11:11 +0100 | asked a question | def f(x): evaluvates individually but not inside plot Hi, I am stuck with a curious error. The code to reproduce error is given below. The function T basically integrates the function with a given value of L. The function T works fine if I ask But it gives error, when i give the above mentioned plot command. What might be going wrong here? |
2012-11-14 18:12:51 +0100 | received badge | ● Famous Question (source) |
2012-09-16 20:52:17 +0100 | received badge | ● Notable Question (source) |
2012-05-04 22:42:01 +0100 | marked best answer | Physics constants in sage. Scipy, included in sage, has these constants: More details about what is in |
2012-05-02 16:52:10 +0100 | received badge | ● Notable Question (source) |
2012-02-26 22:15:01 +0100 | received badge | ● Popular Question (source) |
2012-02-20 12:40:21 +0100 | received badge | ● Popular Question (source) |