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# A simple vector.

## A simple vector.

(OP)
I need to draw a simple 3D vector to a point in space. How do I do it? (using MathCad 11.2)

I have data arranged in arrays based on the coordinate value(x-array, y-array, z-array) because thats the only way I can get the points in the right place or to appear at all.

For example...
-------------------------------------------------------
/ 1.995  \
point1x := | 5.235  |
\ -1.193 /

/ 2.390  \
point1y := | 5.235  |
\ -0.292 /

/ 5.548  \
point1z := | -7.681 |
\ -5.076 /

//Plot box
___________________
|                   |
|     |  .          |
|     |             |
|     |      .      |
|     |________     |
|    /   .          |
|   /               |
|  /                |
|                   |
|___________________|
(point1x,point1y,point1z)
--------------------------------------------------------

This plots the three points I gave coordinates for.
I want to specifically draw vectors from the origin to each point in space, and label them on the graph.

If there's a way to lock the axes @ (0,0,0) that would also be helpful.

Its a directional magnetic field from certain points about a polycyclic aromatic hydrocarbon.

The origin represents the point in space the field strength was computed from. The vectors represent the direction of the magnetic field.

Help!

### RE: A simple vector.

Here is a rudimentary Isometric representation of three vectors in the space starting at the origin of coordinates to three given points.

I am not sure if this could be done using the existing 3-D

http://cuky2000.250free.com/3D_Vectors_Representation1.pdf

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