Directional Derivatives and Gradients
http://www.maa.org/taxonomy/term/40393/0
enSaddle Points and Inflection Points
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/saddle-points-and-inflection-points
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><em>The author explores the relationship between saddle points of surfaces and the inflection points of the projected curves.</em></div></div></div>A Quick Proof that the Least Squares Formulas Give a Local Minimum
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/a-quick-proof-that-the-least-squares-formulas-give-a-local-minimum
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><em>Use the second derivative test to establish that the regression parameters give a minimum.</em></div></div></div>A Surface Useful for Illustrating the Implicit Function Theorem
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/a-surface-useful-for-illustrating-the-implicit-function-theorem
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><em>A nice example has singular points where the gradient is zero.</em></div></div></div>Interactive Teaching Aids for Multivariable Calculus
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/interactive-teaching-aids-for-multivariable-calculus
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><i>Description of physical visual aids for spatial concepts.</I></div></div></div>Directional Derivatives and Gradients (Classroom Capsules and Notes)
http://www.maa.org/programs/faculty-and-departments/course-communities/directional-derivatives-and-gradients-classroom-capsules-and-notes
CalcPlot3D, an Exploration Environment for Multivariable Calculus
http://www.maa.org/programs/faculty-and-departments/course-communities/calcplot3d-an-exploration-environment-for-multivariable-calculus
Calculus Visualizations
http://www.maa.org/programs/faculty-and-departments/course-communities/calculus-visualizations
Maplets for Calculus
http://www.maa.org/programs/faculty-and-departments/course-communities/maplets-for-calculus
CalcPlot3D
http://www.maa.org/programs/faculty-and-departments/course-communities/calcplot3d
Bridge Project Activities, Vector Calculus Activities
http://www.maa.org/programs/faculty-and-departments/course-communities/bridge-project-activities-vector-calculus-activities
Rutgers Maple Help on Intermediate to Advanced Maple
http://www.maa.org/programs/faculty-and-departments/course-communities/rutgers-maple-help-on-intermediate-to-advanced-maple