How do I write the equation for a ramp function?

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To write the equation for a ramp function, it is essential to understand the use of unit step functions (U) to define the ramp's behavior over time. A typical ramp function can be expressed using the difference of unit step functions, such as U(t) - U(t-1) for a ramp starting at t=0 and ending at t=1. If the ramp extends beyond these points, additional unit step functions can be included to adjust the starting and ending points accordingly. The user seeks a quick response to finalize their equation, indicating urgency in obtaining clarification on the ramp function's formulation. Clear examples and further details on unit step functions are crucial for accurate representation.
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HELP! Step and Ramp Functions!

I need to write the equation out for a ramp function that looks like the one I attached!

In the form for example: U-1(t) - U-2(t-1) - U-2 (t-3)

Need quick response THANKS!
 
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welcome to PF.
I guess the attachment didn't make it.
 

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