What is the equation for a 2-norm of 1 in a 2-dimensional vector?

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SUMMARY

The discussion centers on calculating the 2-norm of a 2-dimensional vector in R², specifically for the case where the 2-norm equals 1. The equation that must be satisfied by the vector (x, y) is given by √(x² + y²) = 1, which represents a circle of radius 1 centered at the origin. Additionally, the discussion touches on the unity norm (1-norm) and infinity norm, emphasizing the need to sketch the root loci for these norms in a 2-dimensional space.

PREREQUISITES
  • Understanding of vector norms, specifically 1-norm, 2-norm, and infinity norm.
  • Familiarity with the Cartesian coordinate system in R².
  • Basic knowledge of sketching geometric figures based on mathematical equations.
  • Ability to manipulate and solve equations involving square roots and squares.
NEXT STEPS
  • Research the geometric interpretations of 1-norm and infinity norm in R².
  • Learn how to sketch the root loci for different vector norms in a 2-dimensional space.
  • Explore the properties of circles and their equations in Cartesian coordinates.
  • Study the differences between various vector norms and their applications in mathematics.
USEFUL FOR

Students studying linear algebra, mathematicians interested in vector analysis, and anyone needing to understand vector norms in two-dimensional spaces.

JerryG
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Homework Statement



I have a homework problem that asks the following:

Sketch the root locii of points in R^2 having unity 1-norm, 2-norm and infinitynorm.

R^2 is a 2 dimensional vector.

I know how to calculate vector norms, but I'm not sure how to approach the rest of the problem. Can anyone help me out with this problem or point me in the right direction?
 
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Unity norm means norm 1. What equation must (x,y) satisfy if its 2-norm = 1?
 

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