// Function to find x A n using p static long power (long x, long y, { } // Initialize result = 1; long res // Update x if it is more than // equal to p X x % p; while (y > 0) { } // If y is odd, multiply x // with result if (y % 2 == 1) res = (res * // y must y X = be even now >> 1; // y = y/2 x) % p; y (x * x) % p; return res;

// Function to find x A n using p static long power (long x, long y, { } // Initialize result = 1; long res // Update x if it is more than // equal to p X x % p; while (y > 0) { } // If y is odd, multiply x // with result if (y % 2 == 1) res = (res * // y must y X = be even now >> 1; // y = y/2 x) % p; y (x * x) % p; return res;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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% Define the function f(x) f = @(x) -1*(x < 0) + 1*(x >= 0 & x <= 2); % Set the maximum value of N Nmax = 512; % Initialize the x-axis values for plotting x = linspace(-1,3,1000); % Compute the Fejér sums for various values of N F = zeros(length(x), Nmax); for N = 1:Nmax % Compute the Nth Fejér sum Sn = @(x) 0; for n = 1:N bn = (-1)^(n+1) / (n*pi); Sn = @(x) Sn(x) + bn*sin(n*pi*x); end FN = @(x) (1/N) * Sn(x); % Evaluate the Fejér sum at each point on the x-axis I tried to submit this to MATLAB, but can't seem to get it right.
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