Amitava, it is fantastic that you are contributing problems, but you really need to spend more time specifying what the solution should do. The person solving is left needing to guess too much.
Definitely Agree with the cyclist. W/o example it is impossible to understand the task to achieve.
The DC component of a signal is usually its mean. Now filter can have many meanings, but in this case, it means to remove the signal variation.
Find state names that start with the letter N
Create a cell array out of a struct
Is the Point in a Circle?
Basic arrays operations.
Sum the numbers on the main diagonal
Angle of triangle
Person of interest?
Simple spirometer - find your lung capacity from the number and size of soap bubbles in one breath
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