Unit Vector Hat

Description

Unit Vector Hat

The unit vector hat has the symbols for the three main unit vectors, î (i-hat) ĵ (j-hat), and k̂, (k-hat).  You could say that this is your i-hat, j-hat, and k-hat hat!  Physics chic doesn’t get more geek!

The unit vectors are vectors with a length of one that point in a particular direction.  î , ĵ, and k̂ form a set of three mutually perpendicular vectors.  They are similar to x, y, and z, but a bit more generic.  Most advanced physics courses use i, j, and k rather than x, y, and z.

A vector that has a length other than 1 that is pointing in the direction of one of the unit vectors can be expressed by simply multiplying the length times the  unit vector.  For example, a vector that is 5 m long pointing in the i direction would be 5 î. 

To see how you can add a vector in the î  direction to one in the ĵ direction, see this helpful info.

https://www.physicsthisweek.com/lessons/adding-perpendicular-vectors/

Wear your unit vector hat everywhere you go.

Hat Description

Dad hats aren’t just for dads. This one’s got a low profile with an adjustable strap and curved visor.

• 100% chino cotton twill
• Unstructured, 6-panel, low-profile
• 6 embroidered eyelets
• 3 ⅛” (7.6 cm) crown
• Adjustable strap with antique buckle
• Head circumference: 20 ½″–21 ⅝″ (50.8 cm–53.3 cm)
• Blank product sourced from Vietnam or Bangladesh