Apply operation to each element of an array
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I have an array of numbers x1, x2, x3.... I want to obtain an array of numbers y1, y2, y3... such that yi = ceil((3/xi)^2). Is there a way to do this in one line of code without a for loop? I could do it with a for loop but I feel like I should be able to just apply the operation elementwise in a one line command.
Y = ciel((3/X)^2))
but of course that is not allowed