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dharr

Dr. David Harrington

7720 Reputation

22 Badges

20 years, 235 days
University of Victoria
Professor or university staff
Victoria, British Columbia, Canada

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Contact Dr. David Harrington
I am a retired professor of chemistry at the University of Victoria, BC, Canada. My research areas are electrochemistry and surface science. I have been a user of Maple since about 1990.

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dharr has a reputation of 7720. What is reputation?

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dharr has shared five Posts

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11
2

Maple in the Real World

physics dsolve differential-equations eliminate boundary-conditions quantum-mechanics
March 05 2025
5
3

Creating Help - using HelpTools

package helptools makehelp
July 19 2020
3
4

Shortest walks using LinearAlgebra:...

linearalgebra graphtheory walk adjacency-matrix generic
March 21 2023
3
2

Minimal edge cuts of a graph using funda...

graphtheory branch-cuts spanningtree cutset
January 08 2023
2
5

Showing quadratic forms are nonnegative

linear-algebra quadratic-form isdefinite positive-definite sum-of-squares
March 11 2021

dharr has asked seven Questions

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3
6

How to show symbolically that eigenvalues...

complex sort eigenvalues
January 29 2025
2
12

Default value for sparse rtables

sparse rtable
March 25 2023
1
5

Meaning of SymmetryGroup in the Logic...

permutation symmetry logic
February 24 2023
0
2

currentdir() different for Maple and...

currentdir
April 12 2019
0
4

Making help pages appear as worksheets

convert package logic format
January 28 2007

dharr has contributed 1152 Answers

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7
4

change of variables

March 03 2022
7
5

RootOf reliability

July 06 2024
6
0

evalc

January 09 2022
5
1

tubeplot

January 21 2022
5
1

works

January 21 2023

dharr has contributed 1102 Replies

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1
0

Confirmed

January 12 2025
1
0

Maple version

December 02 2024
0
0

the worksheet

April 03 2008
0
0

substituting derivatives

November 02 2007
0
0

simpler?

September 09 2007

dharr has 55 Favorites

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7
7

Document vs worksheet mode

May 16 2016
7
1

About eliminate(...)

solve groebner eliminate
February 28 2022
5
2

integration example

integration
May 06 2020
5
7

question on assume vs. assuming

simplify assuming assume
July 30 2020
5
10

is there an option in Maple to obtain...

linearalgebra eigenvectors eigenvalues
March 18 2021