Show that the Chebyshev polynomials are orthogonal on ( − 1 , 1 ) (−1, 1) (−1,1) with respect to the weight function ( 1 − x 2 ) − 1 / 2 (1 − x^2)^{−1/2} (1−x2)−1/2. Ans: T n ( x ) = cos ( n arcc
Attempt these exercises in advance of the tutorial in Week 3 Find the best L ∞ L_\infin L∞ approximation to f ( x ) = x n + 1 + ∑ k = 0 n a k x k f (x) = x^{n+1} + \sum_{k=0}^na_kx^k f(x)=xn+1+∑k=
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本周题目比较简单暴力。 1252. Cells with Odd Values in a Matrix 暴力模拟 class Solution {public int oddCells(int n, int m, int[][] indices) {int ans=0;int[][] chess=new int[n][m];for(int[] a:indices){for(int i=0;i<m
时间限制:1 秒 内存限制:32 兆 特殊判题:否 提交:5349 解决:1923 题目描述: We now use the Gregorian style of dating in Russia. The leap years are years with number divisible by 4 but not divisible by 100, or divi