STUDENTS: Over the summer, I am adding all lessons for the certificates and research problems to help prepare everyone for fall. As you join PLEM Academy, I will continue adding lessons ahead of your current position in the program so you always have material ready when you need it.
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    • Active Problems
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Home » Research Position » Active Problems » Intermediate

Intermediate

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Active Problems Intermediate PLEM Crash Courses Research Position Volume 1

PROOF [Gilbert Strang] Inverses and Transposes

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by AuthorJonD
Published May 18, 2026
Active Problems Intermediate PLEM Crash Courses Research Position Volume 1

Linear Algebra [David Lay] Nontrivial Solution, Linear Dependence, Span,…

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by AuthorJonD
Published May 18, 2026
Active Problems Intermediate

[ACTIVE] Maxwell’s equations relating the electric field  magnetic field  as they vary with time in a region containing no charge and no current can be stated as follows:

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by AuthorJonD
Published April 28, 2026
Active Problems Intermediate

[ACTIVE] Exact Equations in Differential Equations QUESTION [21] 2.6.7 Determine whether the equation is exact. If it is exact, find the solution.

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by AuthorJonD
Published April 16, 2026

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