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do:
 N = 256;
 MinVal = 0;
 MaxVal = 2^16 -1;

data = nan(N);
 temp = uint16(MinVal:round((MaxVal-MinVal)/(N/2)):MaxVal);
 for i = 1:N/2
 data(i,i:end-i+1) = temp(i);
 data(i:end-i+1,i) = temp(i);

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v = VideoWriter('test.mj2','Motion JPEG 2000');
v.LosslessCompression = true; v.FrameRate=5;
open(v)
f=figure; title('line'), ylabel('amplitude'),xlabel('index')
pause(0.2) %let plot wake up
for i=1:.05:3;
    line(0:.01:1,(0:.01:1).^i)
    im = getframe(f);
    writeVideo(v,im)
end

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import ephem
import datetime

now = datetime.datetime.now() #get current time

Boston=ephem.Observer()
Boston.pressure = 1010 # millibar
Boston.temp = 25 # deg. Celcius
Boston.horizon = 0
Boston.lat='42.3462'

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#!/bin/bash

# reference: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=23440

let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
let secs=$((${upSeconds}%60))
let mins=$((${upSeconds}/60%60))
let hours=$((${upSeconds}/3600%24))
let days=$((${upSeconds}/86400))
UPTIME=`printf "%d days, %02dh%02dm" "$days" "$hours" "$mins" `

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network={
ssid="BU (802.1x)"

key_mgmt=WPA-EAP
pairwise=CCMP TKIP
eap=TTLS PEAP MSCHAPV2
identity="Your BU login"
password="your Kerberos Password: be aware others can read this file!"
phase2="auth=MSCHAPV2"
}

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$ wpa_cli -i wlan0 status 

ssid=BU (802.1x)
id=2
mode=station
pairwise_cipher=CCMP
group_cipher=TKIP
key_mgmt=WPA2/IEEE 802.1X/EAP
wpa_state=COMPLETED
ip_address=155.41.65.23

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function expanded = expanduser(p)
%%
% Examples:
%
% isunix==1 (linux & cygwin) example:
% expanduser('~/Downloads/foo')
% ans = /home/joespc/Downloads/foo
%
% ispc==1 example (Windows)
% expanduser('~/Downloads/foo')

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cmake_minimum_required (VERSION 3.1) #yes, CMake 3.1 is required
project(myproj C)

# https://gist.github.com/scienceopen/9f88bbe4841ea67aa692f7395bb38bfe

add_executable(myprog ../myprog.c)

find_package(HDF5 REQUIRED)
include_directories(${HDF5_INCLUDE_DIR})
target_link_libraries(myprog ${HDF5_C_LIBRARIES})

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#!/bin/sh

apt-get install git libjpeg-dev libpng-dev libtiff5-dev libjasper-dev libavcodec-dev libavformat-dev libswscale-dev pkg-config cmake libgtk2.0-dev libeigen3-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev sphinx-common libtbb-dev yasm libfaac-dev libopencore-amrnb-dev libopencore-amrwb-dev libopenexr-dev libgstreamer-plugins-base1.0-dev libavcodec-dev libavutil-dev libavfilter-dev libavformat-dev libavresample-dev

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#!/bin/sh

brew install git cmake pkg-config jpeg libpng libtiff openexr eigen tbb