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Determinant / fft.c
Created Jul 11, 2014
Direct DFT and Cooley–Tukey FFT Algorithm C Implementation
View fft.c
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
typedef struct Comp {
/* comp of the form: a + bi */
double a, b;
} Comp;
View gist:7ec0400e9be60364f94e

How to Configure AppArmor on Ubuntu

Author: Ted Yin <ted.sybil@gmail.com>
  • AppArmor is a Mandatory Access Control (MAC) system which is a kernel (LSM) enhancement to confine programs to a limited set of resources. Instead of binding access control attributes to users, it confines specific programs.
  • AppArmor is shipped with Ubuntu, which means it is fairly easy to get started.
  • In order to ease the maintenance, we first install the utilities by sudo apt-get install apparmor-utils
View gist:81702d8cc5eaefee277d

PPCA for IEEE 2014 Arrangement & Schedule

Teaching Assistants

Yiming Liu & Xutong Chen:Exams (problem sets and lectures)
Ted Yin & Tongliang Liao:The Project
Jiachen Shi:Lectures on Programming Skills
View gist:8b9e124dc245d9818fa4
#include <cstdio>
#include <cassert>
#include <cctype>
#include <cstring>
#include <cstdlib>
#define SCAST_FLOAT(x) static_cast<Float*>(x)
#define SCAST_INT(x) static_cast<Int*>(x)
/* Abstract interface for numbers */
View gist:cda8f040bde0bd9839b7

Enhanced Calculator Project

Overview

Write an S-expression_ calculator with following functionalities:

  • Reads the expressions from stdin and prints the output to stdout
    • Note that you should guarantee that your program only writes revelant
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