Infinite sum of heviside functions

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  • #1
erezb84
43
0

Homework Statement


how can i find the infinite sum of heviside functions?...

i have this func:
f(t) = sum[n=-infinity to infinity] (-1)^n*[u(t)-(u(t-T))]
where T is a period time..
 
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  • #2
erezb84 said:

Homework Statement


how can i find the infinite sum of heviside functions?...

i have this func:
f(t) = sum[n=-infinity to infinity] (-1)^n*[u(t)-(u(t-T))]
where T is a period time..

The notation is ambiguous. Do you mean [tex] f(t) = \sum_{n=-\infty}^{\infty} (-1)^n [u(t) - u(t-T)], [/tex] or do you mean [tex] f(t) = \sum_{n=-\infty}^{\infty} (-1)^{n [u(t) - u(t-T)]} ?[/tex] In any case, the function g(t) = u(t) - u(t-T) is 1 for 0 <= t < T and is zero for other values of t. That should allow you to easily examine your infinite series.

RGV
 

1. What is an infinite sum of Heaviside functions?

An infinite sum of Heaviside functions is a mathematical concept that involves adding an infinite number of Heaviside functions together. A Heaviside function, also known as the unit step function, is a function that has a value of 0 for all negative inputs and a value of 1 for all positive inputs. When these functions are added together, they can create interesting patterns and can be used to model various physical phenomena.

2. How is an infinite sum of Heaviside functions calculated?

To calculate an infinite sum of Heaviside functions, you need to first determine the individual values of each Heaviside function at specific points. Then, you add these values together to get the final sum. Since there are an infinite number of Heaviside functions involved, this calculation is often done using calculus and integration techniques.

3. What is the purpose of studying infinite sums of Heaviside functions?

Studying infinite sums of Heaviside functions can help us understand and model various physical phenomena, such as the flow of electricity or the behavior of fluids. These functions can also be used in signal processing and control systems to analyze and manipulate signals and systems.

4. Are there any real-life applications of infinite sums of Heaviside functions?

Yes, there are many real-life applications of infinite sums of Heaviside functions. These functions can be used to model the behavior of electrical circuits, fluid flow in pipes, and the response of control systems. They are also used in signal processing to analyze and filter signals.

5. Can an infinite sum of Heaviside functions ever equal a finite value?

Yes, an infinite sum of Heaviside functions can sometimes equal a finite value. This can happen when the individual values of the Heaviside functions are carefully chosen and when the sum converges to a specific value. However, in most cases, the sum will either approach infinity or oscillate between different values.

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