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Topics - SelinaW

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1
Chapter 3 / 3.2 Theorem1
« on: February 09, 2021, 04:05:58 AM »
I am not sure what should this integral integrate over. Is it -∞ to +∞ or 0 to +∞?

2
Chapter 3 / 3.1 Heaviside step function
« on: February 09, 2021, 04:00:59 AM »
I believe as t->0+ and x>0, the integral I marked in red should be sqrt(pi), then U(x, t) should be 1/2. I do not know how we get 1.

3
Chapter 2 / Example 6 from Week 3 Lec 2
« on: February 02, 2021, 10:22:27 AM »
Should here be -2 instead of -25?
I have attached the picture below.

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