UserVectors Module

 Keypad Functions

Function

Description

=

Use to enter variable values

A to E

Refers vector variables A to E

{xyz}

Rectangular notation of vectors. Use to enter vectors.

|A|

VMag(A) returns the magnitude of vector A.

aby

VDirection(A)  returns the direction angles to x, y and z-axis of vector A.

[x]

Get x-coordinate of vector. Use: A[0,1] will give Ax

[y]

Get y-coordinate of vector. Use: A[0,2] will give Ay

[z]

Get z-coordinate of vector. Use: A[0,3] will give Az

>R

VRect(r,θ) returns the x,y,z-coordinates of the vector given by magnitude r and angle (to x-axis) θ. Caution: z is always 0 as r,θ describe a 2D-vector!

θ

VTheta(A) returns the xy-plane projected angle of vector A to the x-axis. θ corresponds to the angle of 2D-polar notation.

<AB

VPhi(A,B) returns the angle between vectors A and B.

A.B

VDot(A,B) returns the scalar dot product of vectors A and B. (This means the area between A and B)

A×B

VCross(A,B) returns the vector cross product of vectors A and B.

ABC

VTriple(A,B,C) returns the scalar triple product of vectors A,B and C. (This means the volume between A,B and C)

VUnit(A) returns a unit vector in direction of vector A.

Drw

VDraw(A,B,..) draws a 2D-Plot of the given vectors.

Set

Use to define the 3 additional user keys on the bottom.