Sungjin Kim jskDr

Adjunct Professor

jskDr / NNEQ_XOR.py

Created August 2, 2014 09:13

Under developing python code for NNEQ when XOR is used for testing

	import matplotlib.pyplot as plt

	# input is 1, 0
	def NNEQ( x1, x2, w1, w2):
	y = x1 * w1 + x2 * w2
	return y

	def NNEQ_bias( x1, x2, w1, w2, w_bias):
	y = x1 * w1 + x2 * w2 + w_bias
	return y

jskDr / scix_c.pyx

Created May 24, 2014 18:11

This code shows how to use functions of C libraries.

	# Use C library, which is log() in math.h
	cdef extern from "math.h":
	double log(double x)

	def kmc( float x):
	cdef float t
	t = log( x)
	return t

jskDr / String2.java

Created April 4, 2014 15:14

	public class String2
	{
	public static void main(String[] args)
	{
	String hw = "String of Hello world!";
	String hwAll[] = {"00", "11", "22"};
	String hwAll2[][] = {{"00", "zero"},{"11", "one"}, {"22", "two"}};
	System.out.println( hw);

	// this is used for displaying one dimensional array

jskDr / main.py

Created March 4, 2014 11:00 — forked from falsetru/main.py

	#!/usr/bin/kivy
	import kivy
	#kivy.require('1.0.6')

	from kivy.app import App
	from kivy.uix.floatlayout import FloatLayout
	from kivy.uix.label import Label
	from kivy.graphics import Color, Rectangle, Point, GraphicException
	from kivy.clock import Clock
	from kivy.logger import Logger

jskDr / cython_numpy.pyx

Created February 26, 2014 13:02

Cython with numpy in ipython

	%%cython
	import numpy as np
	cimport numpy as np
	from libc.math cimport sqrt
	cimport cython

	ctypedef double (*mertric_ptr)(np.ndarray, np.ndarray)

	cdef double euclidean_distance( np.ndarray[double, ndim=1, mode='c'] x1):
	N = x1.shape[0]

jskDr / numpy_hello.py

Created February 18, 2014 12:19

This is numpy codes for testing its basic functionality. Numpy offers the efficient way to calculate array and matrix for linear algebraic problems.