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2015-11-03 14:53:23 +0200 | asked a question | Graphing 3 planes Disclaimer: I'm new to linear algebra and an intermediate with Sage. How can I graph the following planes? This example is taken from Linear Algebra and Its Applications by Strang. I've tried to follow these instructions, but I'm stuck. Thanks!
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2015-09-24 17:49:42 +0200 | commented answer | Graph or plot a system of inequalities This is a clever solution. I didn't know you could use the solver with rhs and plot to graph relations. The problem is that it doesn't shade the inequality's region like region_plot does. |
2015-09-24 17:47:48 +0200 | commented answer | Graph or plot a system of inequalities You beat me to it. I was going to suggest: |
2015-09-24 14:34:10 +0200 | asked a question | Graph or plot a system of inequalities Disclaimer: I'm somewhat new to Sage. Is it possible to graph a system of inequalities in Sage? I'd like to reproduce the following system (top of image) and its graph (bottom of image). Based on (http://www.sagemath.org/tour-graphics...), it seems like I need a region plot, but I'm not sure. |
2015-08-06 01:57:59 +0200 | asked a question | How to plot a parabola (conic): y²=4ax I'm learning about conics, specifically parabolas, and I'd like to plot them. I already know how to do plot(x^2)), but what about y²=4ax ? I understand that representation is a relation, not a function, so that probably eliminates plot(f(x)). But, I'm stuck on how I might plot that so-called "general form" of a parabola. Thanks! |
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2015-07-20 16:02:25 +0200 | commented answer | Label each point very nice! thank you! |
2015-07-19 08:04:48 +0200 | asked a question | Label each point Is it possible in Sage to label each point in a 2-D plot? I'd like to create something like this: |
2015-07-13 18:04:20 +0200 | commented answer | Plots: display period information Perfect! It didn't occur to me to use a list comprehension. |
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2015-07-10 23:25:41 +0200 | asked a question | sin arguments not distributed? In both Wolfram Alpha and Google, I can type the following: 3sin(2(x-(pi/4)))+1 and those systems see but when I enter it into Sage Math, it's show(f(x)) indicates as shown here: http://picpaste.com/1-3llQDTs0.png (sorry, I can't upload images on ask.sagemath.org since I have less than 60 points) which obviously differs from Wolfram Alpha and Google. What am I doing wrong? Thanks! |
2015-07-10 22:32:46 +0200 | asked a question | Plots: display period information Disclaimer: I'm new to Sage. Is it possible to indicate the period when plotting periodic functions? According to my trig book, for example, "you have a graph that has four complete cycles of the sine curve in the space where you would usually find one", as shown here: Is there a way to indicate each period? If not, could I approximate it with ticks? Something like: |
2015-07-10 21:14:28 +0200 | marked best answer | Beginner: Plot sin 2x or 4cos 2x Disclaimer: I'm a beginner with Sage. I'm working with transformations and translations of trig functions, and although I can "plot(sin, (-2,2))" without trouble, how do I plot the following? or or Thanks! |