Python to Houdini

This class will open a port in Houdini an emulate a terminal with the ability to send and receive commands.

Imagemagick

Imagemagick is a command line tool that you can use to manipulate images.

Convolution

This java class emulates a signal that can be convolved with other signals in discrete time.

Powersets

Creating the set of all possible subsets, the powerset of a set with Scheme.

Redirecting IO stream

Redirecting the input output stream using the << symbol in the c or bash shell. This is useful when you wish to run another program that is initialized in the shell through a command.

Environment Diagrams

Example environment diagrams in Scheme.

Message Passing vs Tagged Data

Message passing is the underlying theme of object oriented programming. Data directed programming uses tagged-data.

Y-combinator

Y-combinator is a way of defining a function that can call itself without the define function.

Perfect Numbers

This demonstrates a mathematical concept of a perfect number in a computational abstraction utilizing scheme.

Simple Tree Recursion

Implementing tree recursion with Scheme.

run program

Run a program with applescript.

bash if

If statement in bash using the test statement.

n-Dimensional Fit Function

This python program fits n-Dimensional data.

Aligning LaTeX images

This bash script helps to align images, or define boundaries for external postscript files within a tex file that uses pstricks.

Unit Vectors PStricks

This generates the LaTeX code for creating vectors on a unit circle.

Generate LaTeX Matrices

This PHP script generates LaTeX code for a matrix.

LaTeX PStricks Stem Plots

This PHP script generates Stem Plots in LaTeX using PStricks.

BASH script for LaTeX generation

A simple BASH script for LaTeX rendering.

Delete Whitespace

This script deletes whitespace in PHP.

Dependent Files

This bash script creates README files within a php folder hierarchy and determines all functions, their arguments, and which php files use them.

cs61a Review

Cs61a review material.

Dynamic Arrays

Create an arbitrarily sized array in a for loop.

Distinguishable and Indistinguishable

Distinguishable and Indistinguishable boxes and objects. Combinations and permutations. Placing objects into boxes.

Pseudocode in LaTeX

Using LaTeX to generate pseudocode-type display for algorithms.

Scheme mathematics

Using scheme to compute derivatives and integrals.

Sort Function

A sorting function in C++ that uses a bubble sort algorithm.

Vector Bubble Sort

Bubble sort a vector in scheme.

Vector Filter

Creating a vector-filter function without the use of lists as an intermediate value.

Vector Append

How to create a vector append procedure in Scheme.

Mapping Trees

Applying functions to trees recursively.

Return Path in Tree

Return the path of a given element within a tree.

Environments

Utilizing environments to make classes and objects.

Binary Trees

Binary trees, binary search trees, and algorithms for searching these trees.

Records

A record system using get and put within scheme.

Filter procedure

Filters a sequence based on a predicate.

Convert tree to list

Convert a tree to a list.

Deep Recursion

Deep recursion in Scheme.

Reversing lists

Reversing a list in scheme using iterative and recursive processes.

Euclidean Algorithm

The Euclidean Algorithm is used to find the Greatest Common Divisor. Written in Scheme.

Base Expansion

How to compute a base b expansion of a number n.

Modular Exponentiation

Modular Exponentiation is an important algorithm in cryptography and computer science.

Substitute words in lists

Recursive string substitutions in lists in Scheme.

Reading and writing files

Writing and opening files in Scheme.

Extracting Data

Extract data using regular expressions.

Generate Wav Files

Generate audio files with Python for programming music!

Music Intelligence

Python music! Scales, keys, music, beats, and Python!

Read File Data

Using fscanf() to read characters from a file into a multi-dimensional character array.

Struct

Using the struct statement in C.

Character Arrays

String functions in C involving arrays of characters.

Passing arguments

How to pass arguments into a C program with the command line.

Generate ABC

Generate the open-source ABC format in C for MIDI music.

Multidimensional Arrays

Using malloc() within Multi-dimensional Arrays in C.

Create RIB Files

Generation of RIB files with C.

Game of Craps

A simulation of the game craps in C.

Sort Array

This program contains functions that sort arrays, and opens and reads files. Written in C.

Comparison Operators

Comparison operators, <, <=, >, >=, ==, etc.

Random Numbers

Introduction to srand() function in C and having a maximum and minimum specified as a range for random numbers.

Getchar

Two methods of using getchar() function in C to input characters and echo them to the textport.

Division

Dividing floats with true division as opposed to floor division.

Concatenating

Create a string by concatenating a character and an integer.

Get Subfolders

Get all subfolders in a MySQL table using PHP.

Factorial

Factorials using python.

Print Stars

How to create a modular function in C to print stars.

Scanf inside a function

How to use the scanf statement within a function by using pointers.

Add Fractions

Adds two fractions, and reduces them using the modulus function.

Intervals and inversions

This code will determine the musical relationship between different notes based on a tonic. Includes inversions.

Music Intervals

Combining programming and music through intervals.

Return Character Array

Returning character arrays from a function in C.

Arpeggio

Generation of arpeggio for .chan output.

Notes in a Scale

Mathematically moves any notes into a scale.

Frequency

Mathematics, music theory, and programming to create a table of the 88 keys of a grand piano.

Count Time

Enter the number of seconds and return Hours, Minutes, Seconds.

Count Money

Counting the number of pennies and converting to other change in C.

Piano Frequency

Mathematically generate all of the frequencies of the 88 keyboard piano.

System Command

The system command in C allows programmers to communicate with the computer's operating system.

Generate New C File

A program that generates a blank C file with the specified filename, then opens the file in a vi editor in the terminal.

Write File

Write data to a file in C.

Concatenate

Concatenate two strings in C.

Help

How to use the help function when you need assistance.

Dir Function

The dir function returns all the functions inside of a module.

Reconstruct URL

Reconstruct a URL with PHP.

noise

An attempt to re-create the noise() expression.

User Input

User input using pointers in C.

Environment Variables

Emulate the setenv command and retrieve all environment variables.

URL Openers

Open up a url and send commands using Python.

UNIX commands

Use the commands module for unix commands.

Writing Files

Writing to a file.

Passing Arguments

Methods for handling argument passing.

User Input

Get user input.

Reading Files

Methods for reading files and lines of files.

Loops

Basic for loop with an embedded if statement.

Importing

Using the import function to import modules.

String Formating

Methods for string formatting in Python.

Dictionary Methods

Basic dictionary methods.

List Methods

Basic operations for lists.

String Methods

Some string methods along with string replace, find, and where.

For and While Loop

The very basics of for and while loops in Python.

Functions

Creating a basic function in Python.

List Directories

Different methods for listing folders in a directory.

Classes in C++

Classes in C++.

Pass in arguments

Passing arguments in C++.

Begin a Rails Project

Setting up a Ruby on Rails (RoR) website.

Pointers and Arrays

Pointers and arrays in C++.

More Pointers

More pointers in C++.

Pointers

A primer for pointers in C++.

Redirect input output stream

This creates a dictionary from two lists, and redirects the input output stream to a file.

More Basics

More Python basics.

Print

Printing in C++.

Floats

A look at floats in C++.

Guess Random Number

C++ Program to guess a random number.

Basic Function

A basic function in C++.

User Input

User input using pointers.

sed

A brief, yet in depth overview of the string replacing capabilities of the sed command. sed Unix Matrix

User input with Gets

Use gets() to get user input.

Generate Script

Generating render scripts.

icomposite

Compositing images... command line style.

Basic PHP

PHP primer.

Arrays

Arrays in C++.

mysqldump

Dump a mysql database to a .sql file.

Python basics

Some basic operations in Python.

Basic Perl

A basic overview of some perl one-liners.

play sound

Play sound command on an apple computer.

vi text editor

Tips for the vim and vi editors.

General BASH tips

This includes some terminal key commands, bracing, basic math, and creating variables.

rename

Renaming directories based on the parent directory.

man tip

Output a manual page to a file.

head tail

A trick using head and tail commands to pull out a line of a file.

grep

The grep command comes in handy for parsing files.

find

Using the find command for various tasks in bash.

du

Lists folder size, in bash and freebsd.

awk

A brief overview of the awk command.