mhamilt

filename=$(basename $1 .png)
for res in 1024 512 256 128 64 32 16
do
  convert $1 -resize "${res}x${res}" "${filename}-${res}.png"
done

mhamilt

mhamilt

import struct
import wave
import os
from math import sin, tau

sample_rate = 44100.0
duration = 2.0
frequency = 440.0
num_samples = int(sample_rate * duration)
bit_depth = 16

mhamilt

//-----------------------------------------------------------
// Play an audio stream on the default audio rendering
// device. The PlayAudioStream function allocates a shared
// buffer big enough to hold one second of PCM audio data.
// The function uses this buffer to stream data to the
// rendering device. The inner loop runs every 1/2 second.
//-----------------------------------------------------------

#include <iostream>
#include <windows.h>

mhamilt

Modes

• Parameter Expansion: ${}
• Command Substitution: $()
• Arithmetic Expansion: $(())

Examples

Parameter Expansion

mhamilt

# declares an array with the emojis we want to support
EMOJIS=("🐑" "🦔" "🐈" "🦆" "🐓")

# function that selects and return a random element from the EMOJIS set
RANDOM_EMOJI() {
  SELECTED_EMOJI=${EMOJIS[$RANDOM % ${#EMOJIS[@]}]};
  echo $SELECTED_EMOJI;
}

# declare the terminal prompt format

mhamilt

#include <ApplicationServices/ApplicationServices.h>
#include <iostream>
#include <string>

///print out location in a nice way to std cout
void fancyPrintLocation(CGPoint location);

/// This callback will be invoked every time the mouse moves.
CGEventRef myCGEventCallback(CGEventTapProxy proxy, CGEventType type,
                  CGEventRef event, void *refcon)

mhamilt

function out = autocorrolate(signal)
% AUTOCORROLATE  Multiply a signal by itself over a moving delay window.
% Max delay will be equal to the length of the signal
%   Y = AUTOCORROLATE(x) returns auto correlation of x
%
	N = length(signal);
	out = zeros(size(signal));
	for l = 1:N - 1
		for n = l+1:(N)
			out(l) = out(l) + (signal(n)*signal(n-l));

mhamilt

Copy and Paste or create a code snippet in xcode

Access snippets in Xcode with ⇧⌘L

/*!
 @class <#Class Name#>
 @brief <#Quick Description#>
 @discussion <#Talk about what this does in more detail#>
 @namespace &lt;#What is the Namespace if any#&gt;

mhamilt

//------------------------------------------------------------------------------
import AVFoundation
//------------------------------------------------------------------------------
var secondsOfAudio:Float = 0.5; // or var secondsOfAudio:Float = Float(CommandLine.arguments[1])!;
//------------------------------------------------------------------------------
var ae:AVAudioEngine? = AVAudioEngine()
var player:AVAudioPlayerNode? =  AVAudioPlayerNode()
var mixer:AVAudioMixerNode? = ae?.mainMixerNode;
//------------------------------------------------------------------------------
let sr:Float = Float((mixer?.outputFormat(forBus: 0).sampleRate)!)