Questions - ASKSAGE: Sage Q&A Forum

458

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1

answer

1

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2017-08-15 22:16:01 +0100 fidbc

"Cocalc is on standby...click to resume"

5k

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1

answer

no

votes

2017-08-16 20:12:26 +0100 psp

import CSV in python using jupyter notebook on cocalc cloud

2k

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2

answers

1

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2017-08-17 03:55:48 +0100 Fusion809

How to calculate the double factorial in SageMath?

special_functions

428

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1

answer

no

votes

2017-08-17 04:30:32 +0100 Anonymous

solve memory problem in my program

158

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no

answers

1

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2017-08-17 10:27:55 +0100 Gambit

Obtaining the phase spectrum with continuous wavelet transform

cwt

955

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2

answers

no

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2017-08-17 14:31:15 +0100 B r u n o

Why does $\frac{2}{3} t - \frac{2}{3} y$ factors only when the variables are polynomial ring over the rational numbers?

factor

424

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no

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no

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2017-08-17 23:05:54 +0100 tavianator

Why does assume() mess with equality checks?

750

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no

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1

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2017-08-18 00:36:31 +0100 Doeke

Implicit plot with squaring and absolute value produces empty plot

2k

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2

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no

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2017-08-18 19:51:49 +0100 kcrisman

how one can obtain eigenvalue and eigenvectors from a list of matrices at a single step

316

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2

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no

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2017-08-19 14:42:44 +0100 dan_fulea

real_part of an equation [closed]

2k

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1

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1

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2017-08-19 16:46:42 +0100 ndomes

Defining functions acting on matrix elements?

1k

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1

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no

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2017-08-19 17:37:22 +0100 kcrisman

What is the difference between .sage and .sagesw?

1k

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1

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no

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2017-08-19 20:16:54 +0100 fidbc

fractional_chromatic_index in sage-7.6 gets stuck in loop adding constraints

1k

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1

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no

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2017-08-21 08:47:15 +0100 pipedream0

Read-only Sage" Error

2k

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1

answer

1

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2017-08-21 18:08:35 +0100 David Coudert

Changing the weights in a graph

weighted-graph

546

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1

answer

no

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2017-08-22 15:20:52 +0100 rewi

how to find the number of trees on 18 vertices that have diameter=5 and product of 2nd smallest laplacian eigenvalue(algebraic connectivity)and largest laplacian eigenvalue is equal to 1. If we increase the number of vertices say above 18 why it gives no result?

1k

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3

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2

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2017-08-23 10:20:37 +0100 mforets

Should I / how should I make an optional sage package?

5k

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1

answer

1

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2017-08-23 22:38:04 +0100 fidbc

how to plot vertical lines

834

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1

answer

1

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2017-08-24 06:17:18 +0100 dan_fulea

maximum of a two variable polynomial by fixing one of them

1k

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2

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no

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2017-08-24 08:34:04 +0100 rws

collect variables buried in an expression

collect

1k

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no

answers

1

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2017-08-24 14:28:47 +0100 Jo Be

Solving equations in polynomial ring if ideal is positive dimensional

1k

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1

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no

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2017-08-24 16:34:00 +0100 smbelcas

Sage 8.0 startup screen: broken links?

sagemath8.0

465

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1

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no

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2017-08-24 17:33:38 +0100 fidbc

Suppose we have a graph. Is it possible to get the laplacian matrix of the graph directly from the given graph? Can one use the degree sequence of the graph for this purpose?

749

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no

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no

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2017-08-24 17:57:11 +0100 smbelcas

unexpected behaviors with Sage 8.0 on Mac

1k

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1

answer

1

vote

2017-08-24 20:23:07 +0100 fidbc

Select list element around a value

849

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1

answer

1

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2017-08-24 21:06:26 +0100 eric_g

make doc-pdf fails (sage 8.0/ubuntu 16.04)

486

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no

answers

2

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2017-08-25 23:40:44 +0100 itorsics

Installing package without recompiling sage from source

265

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no

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no

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2017-08-27 12:45:38 +0100 Anonymous

How one can get a tree with exactly a given degree sequence and a given set of edges?

3k

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no

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no

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2017-08-27 22:34:58 +0100 Ask3

How to calculate interest on a car loan?

655

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1

answer

-1

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2017-08-28 11:31:32 +0100 rewi

Write a code for a tree on 9 vertices given in the set {0,1,2,3,4,5,6,7,8} and the edge set of that tree is {(6,1),(1,5),(5,0),(5,3),(3,2),(3,8),(8,4),(8,7)}.

12776 questions

"Cocalc is on standby...click to resume"

import CSV in python using jupyter notebook on cocalc cloud

How to calculate the double factorial in SageMath?

solve memory problem in my program

Obtaining the phase spectrum with continuous wavelet transform

Why does $\frac{2}{3} t - \frac{2}{3} y$ factors only when the variables are polynomial ring over the rational numbers?

Why does assume() mess with equality checks?

Implicit plot with squaring and absolute value produces empty plot

how one can obtain eigenvalue and eigenvectors from a list of matrices at a single step

real_part of an equation [closed]

Defining functions acting on matrix elements?

What is the difference between .sage and .sagesw?

fractional_chromatic_index in sage-7.6 gets stuck in loop adding constraints

Read-only Sage" Error

Changing the weights in a graph

how to find the number of trees on 18 vertices that have diameter=5 and product of 2nd smallest laplacian eigenvalue(algebraic connectivity)and largest laplacian eigenvalue is equal to 1. If we increase the number of vertices say above 18 why it gives no result?

Should I / how should I make an optional sage package?

how to plot vertical lines

maximum of a two variable polynomial by fixing one of them

collect variables buried in an expression

Solving equations in polynomial ring if ideal is positive dimensional

Sage 8.0 startup screen: broken links?

Suppose we have a graph. Is it possible to get the laplacian matrix of the graph directly from the given graph? Can one use the degree sequence of the graph for this purpose?

unexpected behaviors with Sage 8.0 on Mac

Select list element around a value

make doc-pdf fails (sage 8.0/ubuntu 16.04)

Installing package without recompiling sage from source

How one can get a tree with exactly a given degree sequence and a given set of edges?

How to calculate interest on a car loan?

Write a code for a tree on 9 vertices given in the set {0,1,2,3,4,5,6,7,8} and the edge set of that tree is {(6,1),(1,5),(5,0),(5,3),(3,2),(3,8),(8,4),(8,7)}.

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