Write a function that, given a vector of values from an unknown function, estimates the derivative at a given point by interpolating a quadratic polynomial through the closest 3 available points and differentiating the polynomial analytically.

Sometimes writers elaborate on the truth when recalling past events so they can enhance their narrative essay with more interesting descriptions. do you feel that published writers should or should not embellish real life events just to make their stories more interesting?

Ac++an of of pi. in , pi is by : pi = 4 – 4/3 + 4/5 – 4/7 + 4/9 - 4/11 + 4/13 - 4/15 + 4/17 . ., to pi (9 ). , if 5 to pi, be as : pi = 4 - 4/3 + 4/5 - 4/7 + 4/9 = 4 – 1. + 0.8 - 0. + 0. = 3.. atoofbe to pi?

You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck. (a) are the outcomes on the two cards independent? why?