Numpy

What do you need to do first, if you want to use Numpy?

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There are many different ways of creating a Numpy array for the sequence of the first 5 non-negative integers. Implement two of them here:

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Create an array of shape 3 x 4 which consists of all ones and one array of the transposed shape 4 x 3 which is full of zeros.

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Create an array with a sequence of 101 equally spaced numbers between 0 and \(2\pi\). What is the shape of the array? Calculate the cosine of this array.

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How do you take every 5th value of the array of cosines?

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How do you reverse the sign of the second half of the array?

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How do you reshape the array of cosines into one of shape 50 x 2?

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Create two arrays now: One contains the cosine of 100 equally spaced numbers between 0 and \(2\pi\) and one contains the sine of the same numbers. Reshape the array of cosines into shape 100 x 1. Then multiply both arrays.

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Now, visualize the product of the sine and the cosine array.

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