[sage-support] Re: limitations of "solve"?

3 10:36 AM, Fernando Q. Gouvea wrote: Yesterday I was demonstrating to my calculus class Sage's ability to implement the method of Lagrange multipliers. I used a standard example, putting the following code into SageMath Cell: var('x,y,l') f(x,y)=10*x^(1/3)*y^(2/3) g(x,y)=5*x-6*y

[sage-support] limitations of "solve"?

e constraint equation 5x^2 + 6y=120 is easily solved for y... Questions: 1) Shouldn't SageCell output an empty list here? 2) Is this a known limitation of "solve"? Fernando PS: It seems that if I add "algorithm='sympy'" then solutions are found. -- =

[sage-support] plotting tangent vectors to a curve

nando -- == Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea No matter where you stand, no matter how far or fast you flee, when it hits the fan, as much as possible will be propelled in

Re: [sage-support] another "how to simplify" question

I see. So the difference between this and, say, 1+1==2 (which returns True) is that 1+1 and 2 are numbers, not symbolic things. Fernando On 12/8/2021 3:37 PM, William Stein wrote: On Wed, Dec 8, 2021 at 12:22 PM Fernando Q. Gouvea wrote: Thank you, that works. What is strange is

Re: [sage-support] another "how to simplify" question

True sage: wrong.imag() 0 On Wed, Dec 8, 2021 at 10:07 AM Fernando Q. Gouvea wrote: I was showing my students a famous calculus example of an integral that can be computed in one order of the variables but not in the other. Knowing that SageMath can compute anything, th

[sage-support] another "how to simplify" question

- 2*(-1)^(1/4))*e^(-I) == -1/2*cos(1) + 1/2 Thanks, Fernando -- ========== Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fq

[sage-support] Sage 9.3 for Windows crashing

Fernando -- == Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea Humility engenders learning because it beats back the arrogance that puts blinders on. It leaves you open for

Re: [sage-support] Windows install problems

mentioned SageMath 9.2) - if you had a previous working SageMath on the same machine Best Vincent Le 12/03/2021 à 21:01, Fernando Q. Gouvea a écrit : I have installed Sage on lots of windows machines using the prepared binary, but this time I'm having trouble. The installation seems to run

[sage-support] Windows install problems

ing on? Thanks, Fernando -- ====== Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea It has just been discovere

[sage-support] integrating sin(t)/t

0,10) gives the same answer. Fernando -- ====== Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea The object of opening the mind, as of opening the mouth, is to shut

Re: [sage-support] Re: naive question

regards, Simon -- ====== Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea Don't you feel more like you do now than you did when you came

Re: [sage-support] Re: Does SageMath work on Mac OS 10.14.6

77b-83fa-40f3-9687-15bd18c0cf32%40googlegroups.com?utm_medium=email&utm_source=footer>. -- == Fernando Q. Gouvea Carter Professor of Mathematics Colby College Mayflower Hill 5836 Waterville, ME 04901 fqgou...@colby.edu http://www.colby.edu/~fqgouvea What precisely is p