Signal Addition: Beginner FAQs | Learn About Signal Sum

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In signal addition, the process involves summing the values of two signals at each point in time. For the example of u(t) and u(-t), the sum at t=0 is indeed 2, as both signals equal 1 at that point. The resulting signal is symmetric about the y-axis, meaning values at positive and negative t are equal. This reinforces the concept that signals are essentially functions, and adding signals is equivalent to adding functions. Understanding these principles is crucial for beginners in signals and systems.
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I am just a beginner in Signals and systems...
In signal addition when we add two signals for example u(t) and u(-t), we are supposed to just add the values of both the signals at each and every point to get the sum,right?
so in the case of u(t)+u(-t), what will be the sum value at t=0? Is it 2 ? Will that be correct?...
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This question may be foolish but please help...
 
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The values of your signal at different points of t depends upon the signal. The only thing I can tell you from the information that you've given me, is that your signal should be symmetric about the y axis, because that happens when you add u(t) and u(-t). So, u(2)=u(-2), u(3)=u(-3), etc.

But yes, it is essentially just adding two functions.
 
I agree with kovachattack. A signal is just an EE word for a function, so adding signals = adding functions.
 

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