Scot Gould

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Name: Scot Gould

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Member for: 11 years, 363 days

Company/Institution: Claremont McKenna, Pitzer, Scripps College

Title: Professor of Physics

Location: Upland, California, United States

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Dr. Scot Gould is a professor of physics at Claremont McKenna, Pitzer, and Scripps Colleges - members of The Claremont Colleges in California. He was involved in the early development of the atomic force microscope. His research has included numerous studies and experiments using scanning probe microscopes, particularly those involving natural fibers such as spider silk. More recently, he was involved in developing and sustaining AISS. This full-year multi-unit, non-traditional, interdisciplinary undergraduate science education course integrated topics from biology, chemistry, physics, mathematics, and computer science. His current interest is integrating computational topics into the physics curriculum. He teaches the use of Maple's computer algebraic and numerical systems to assist students in modeling and visualizing physical and biological systems. His Dirac-notation-based quantum mechanics course is taught solely through Maple.

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These are questions asked by Scot Gould

New window is opened everytime...

Asked: Scot Gould 1009 Product: Maple 2025

April 03 2025

1 6

Historically, when the Maple program is open and I double-click on a Maple document in my file manager (Windows), the document appears in a new tab of the open program.

With version 2025.0, I performed a completely clean install, deleting files and inheriting no properties from 2024. Now, when I repeat this process, a new window/program is created with the document appearing there. The document does not appear in another tab of the original window/program. Changing the option of sharing the same Maple math engine does not affect this unexpected behavior.

Do others observe this behavior? Is there an option in one of the "Maple.ini" files that I could change? Or is this a bug?

I should note that this behavior is identical on multiple Windows 11 machines. The 2nd one was not a clean install.

Plot matrix with axes values, constraine...

Asked: Scot Gould 1009 Product: Maple 2024

March 01 2025

1 1

I have a square matrix of data points. Each point is between 0 to 0.2. I wish to plot it and set the axes to values from 0 to 1. I want the 3D plot to be plotted with a constrained scaling. The two options I have are plots:-matrixplot and plots:-surfdata.

* matrixplot can constrain the data, but it isn't obvious how to change the axes so that it shows from 0 to 1 in both directions.

* In surfaceplot, it is easy to adjust the axes values, but scaling=constrained does nothing.

(I assume someone else might also appreciate the answer. So, instead of me continuing to struggle, I post here and hope someone can answer without the use of many brain cells.)

Example attached.

restart; N := 20; M := LinearAlgebra:-RandomMatrix(N, generator = rand(0 .. .2))

Scaling can be easily controlled, but labels are bad

plots:-matrixplot(N*M, labels = ["x", "y", "V"], scaling = constrained, axis = [tickmarks = [seq(0 .. 1, numelems = 10)]], size = [600, 600])

Axes are shown nicely, but scaling cannot be constrained.

plots:-surfdata(M, 0 .. 1, 0 .. 1, labels = ["x", "y", "V"], scaling = constrained, size = [600, 600])

Download Scaled_matrix_plot_with_axes.mw

dsolve gets stuck...

Asked: Scot Gould 1009 Product: Maple 2024

December 02 2024

0 4

dsolve gets stuck on a problem. Attached is the worksheet.

In Case I, dsolve solves the two ODEs separately. In Case II, dsolve solves them together, but only if I define a constant. In Case III the constant is not defined. dsolve never returns, and I have to hit the stop sign. The question I have: Is there a consistent method to the failure so that I can avoid the problem in the future with other ODEs?

dsolve_bug.mw