# Calculate-a-Vector-From-Two-Points-CAL-Command

Calculate a Vector From Two Points (CAL Command)

# Calculate a Vector From Two Points (CAL Command)

The functions vec and vec1 calculate a vector from two points.

vec(p1,p2)

Provides the vector from point p1 to point p2.

vec1(p1,p2)

Provides the unit vector from point p1 to point p2.

The following example uses CAL to move selected objects 3 units in the direction from
the center of one selected circle to the center of another selected circle:

Command: move

Select objects

Specify base point or displacement: ‘cal

Expression: 3*vec1(cen,cen)

Select entity for CEN snap: Specify a circle or an arc

Specify second point of displacement or <use first point as displacement: Specify a point or press Enter

The following examples illustrate the meaning of vector and point calculations.

Examples of vector and point calculations

Expression

Meaning

vec(a,b)

Determines vector translation from point a to point b.

vec1(a,b)

Determines unit vector direction from point a to point b.

L*vec1(a,b)

Determines vector of length L in the direction from point a to point b.

a+v

Determines point b, which is a translation of the point a through vector v.

a+[5<20]

Determines point b located 5 units away from point a at an angle of 20 degrees. Note that [5<20] is a vector in polar coordinates.

e functions vec and vec1 calculate a vector from two points. vec(p1,p2) Provides the vector from point p1 to point p2. vec1(p1,p2) Provides the unit vector from …vector starts at a specific point then moves 2 units to the left and 5 units … Example 2 Determine the magnitude of each of the following vectors.calculator help you to find vector components (vector coordinates ) through two points (initial and terminal points) very simply. Using this online …calculation …Determine a unit vector that points in the same direction as a = [3, 2]. … The dot product of a and b can be found by using the command dotP, which is in the Math Matrix :Vector ops … Finding the Formula for Dot Products on your Calculator.… Get the free "Finding a Vector in 3D from Two Points" widget for your website, blog, WordPress, Blogger, or iGoogle. Find more Physics widgets …

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