LaPlace Transform of Heavy Side Function Homework

  • Thread starter Thread starter TG3
  • Start date Start date
  • Tags Tags
    Function
Click For Summary
SUMMARY

The discussion focuses on finding the LaPlace transform of the piecewise function defined as f(t) = 0 for t < 1 and f(t) = t^2 - 2t + 2 for t ≥ 1. The function can be expressed using the Heaviside step function as u1(t)(t^2 - 2t + 2), which simplifies to u1(t)((t - 1)^2 + 1). The participants reference the LaPlace transform formulas for functions of the form u_c(t) y(t - c) and L(t^n), indicating a need for clarity on applying these formulas to the given problem.

PREREQUISITES
  • Understanding of piecewise functions
  • Familiarity with the Heaviside step function
  • Knowledge of LaPlace transform properties and formulas
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the properties of the Heaviside step function in relation to LaPlace transforms
  • Learn the formula for L(t^n) and its applications
  • Explore the relationship between L(t*f(t)) and L(f(t))
  • Practice solving LaPlace transforms of piecewise functions
USEFUL FOR

Students studying differential equations, engineers working with control systems, and anyone seeking to understand LaPlace transforms in the context of piecewise functions.

TG3
Messages
66
Reaction score
0
Homework Statement
While t<1 , f(t) =0
While t>= 1, f(t) = t^2-2t+2
Find the LaPlace transform of the given function.
The attempt at a solution
The problem can be re-written as: u1(t)(t^2-2t+2)

If it helps, this in turn can be re-written as: u1(t)((t-1)^2+1). I'm not sure it does help though.

As for how to proceed from here, I'm in a fog. I know the LaPlace transform for something of the form uc(t) y(t-c), but have no idea what to do with this problem because of the raised power.
 
Physics news on Phys.org
Don't you have the formula for L(tn)?

Or the formula for L(t*f(t)) in terms of L(f(t))?

Oh, and the guy's name was Heaviside. He likely wasn't heavy on one side. :smile:
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 10 ·
Replies
10
Views
3K
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K