Vector Operations
http://www.maa.org/taxonomy/term/40376/0
enOn the Measure of Solid Angles
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/on-the-measure-of-solid-angles
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><em>The author revisits formulas of measuring solid angles that he could find only in centuries-old literature, and provides modern versions of the proofs.</em></p>
</div></div></div>A Vector Approach to Ptolemy's Theorem
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/a-vector-approach-to-ptolemys-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>Ptolemy's Theorem states that the product of the diagonals of a cyclic quadrilateral (a quadrilateral that can be inscribed in a circle) is equal to the sum of the products of the opposite sides. The authors give a new proof making use of vectors.</em></div></div></div>A Geometric View of a Vector Identity
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/a-geometric-view-of-a-vector-identity
<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 geometric proof of the triple vector product identity.</em></div></div></div>A Method for Vector Proofs in Geometry
http://www.maa.org/programs/faculty-and-departments/classroom-capsules-and-notes/a-method-for-vector-proofs-in-geometry
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><em>Some results in plane geometry can be proved easily using 3-dimensional vectors. This article explores several such examples.</em></p>
</div></div></div>Vector Operations (Classroom Capsules and Notes)
http://www.maa.org/programs/faculty-and-departments/course-communities/vector-operations-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
CalcTool 3
http://www.maa.org/programs/faculty-and-departments/course-communities/calctool-3
VecCalc
http://www.maa.org/programs/faculty-and-departments/course-communities/veccalc
Sage Worksheets for Multivariable Calculus
http://www.maa.org/programs/faculty-and-departments/course-communities/sage-worksheets-for-multivariable-calculus
Manipula Math
http://www.maa.org/programs/faculty-and-departments/course-communities/manipula-math
MIT Open Courseware: Parametric Equations for Curves
http://www.maa.org/programs/faculty-and-departments/course-communities/mit-open-courseware-parametric-equations-for-curves
Dot Product Applet
http://www.maa.org/programs/faculty-and-departments/course-communities/dot-product-applet