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Messages - ElementCoder

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Computer Programming / Re: pocketsphinx
« on: July 07, 2014, 01:11:59 pm »
I found an example on which I think has the necesarry options. I guess you'd have to change the CHANNELS to 1 and the RATE to its 16kHz equivalent.
Code: [Select]
"""PyAudio example: Record a few seconds of audio and save to a WAVE file."""

import pyaudio
import wave

CHUNK = 1024
FORMAT = pyaudio.paInt16
RATE = 44100

p = pyaudio.PyAudio()

stream =,

print("* recording")

frames = []

for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
    data =

print("* done recording")


wf =, 'wb')
Again, I've never worked with this or audio in general so I'm making some guesses based on the documentation and interwebs.

Computer Programming / Re: pocketsphinx
« on: July 07, 2014, 12:55:23 pm »
I've never worked with pocketsphinx, but maybe or can be of help.  Are you also recording your voice in 16-bit 16kHz single channel mono as stated?

Art / Re: General purpose art thread
« on: July 03, 2014, 08:05:15 am »
WIP of an attempt to draw Maka from Soul Eater. What do you guys think? It looks somewhat disproportional to me overall, but the main bother for me is that I messed up the hair :P (badly lit, I know)

Gaming Discussion / Re: Steam Summer Sale Confessions
« on: June 20, 2014, 02:00:27 am »
So far I've managed to restrain myself and only bought the Half Life Complete Pack for 9.24 EUR.

Gaming Discussion / Re: What game to pick?
« on: June 02, 2014, 03:04:13 pm »
I'm going for Sonic after all. I think I'll be distracted from Monster Hunter really fast because I don't have the time to really get into it. Maybe I'll try the demo sometimes or buy it when it's cheap :P

Gaming Discussion / What game to pick?
« on: June 01, 2014, 05:03:35 pm »
So I purchased Mario Kart 8 recently and it comes with a free game. The games I can choose from are:
  • Nintendo Land
  • New Super Mario Bros U
  • Game & Wario
  • Pikmin 3
  • Windwaker HD
  • Sonic: Lost World
  • Mario & Sonic at the Olympic Wintergames (not gonna choose this :P)
  • Wii Party U
  • The Wonderful 101
  • Monster Hunter Tri Ultimate
I already have NL, NSMBU and Pikmin 3. The Windwaker HD looks interesting, but I already have the GC one. My real doubt is between Sonic and Monster Hunter. What would you guys pick?

That certainly looks nice. I'm looking forward to the next volume :3

Humour and Jokes / Re: Funny #omnimaga quotes (NSFW)
« on: May 22, 2014, 02:52:47 pm »
Spoiler For long:
Samus, boobs and muscles ! :D
[22:09] <+Streetwalrus>
[22:09] <+Streetwalrus> Wut
[22:09] <+OmnomIRC> (O)<JWinslow23> I just don't need an extra 8 bits of precision.
[22:09] <+Streetwalrus> Samus used to be a muscle mountain
[22:10] <+Streetwalrus> In brawl she's sexy as hell, almost a pr0n*
[22:10] <+Streetwalrus> And now she's just a matches figure O.O
[22:11] <+Streetwalrus> Also where's her iconic blue outfit ?
[22:11] <+OmnomIRC> (O)<JWinslow23> In the game. :p
[22:11] <+OmnomIRC> (O)<Hayleia> wow
[22:11] <+OmnomIRC> (O)<Hayleia> so it made beeps then turned off O.O
[22:11] <+OmnomIRC> (#)* JosJuice has quit #omnimaga (Quit: Leaving.)
[22:12] <+OmnomIRC> (O)<Hayleia> then I turned it back on, it made three beeps between grub and windows
[22:12] <+OmnomIRC> (O)<JWinslow23>
[22:12] <+Streetwalrus> Yeah I know
[22:12] <+OmnomIRC> (O)<JWinslow23> Zero Suit in Metroid: Other M :p
[22:12] <+OmnomIRC> (O)<Hayleia> but heavy ones, not in the speaker, I am sure my neighbours heard them (not joking nor exxagerating)
[22:13] <+Streetwalrus> Are you serious ? Samus ? This kind of shoes ?
[22:13] <+Streetwalrus> This can't be O.O
[22:13] <+OmnomIRC> (O)<Hayleia> have you seen her stilettos in the upcoming Smash ? :P
[22:14] <+Streetwalrus> What ? O.O
[22:14] * Streetwalrus smacks Nintendo
[22:14] <~Derpy> ponies
[22:14] <+OmnomIRC> (O)<Hayleia> she has "power stilettos" or whatever they called them :P
[22:15] * New post by ordelore in Star Wars Rebels
[22:15] <+Streetwalrus> WHERE ARE THE MUSCLES I WANT 'EM BACK
[22:15] * Streetwalrus runs
[22:16] <+Streetwalrus> They call the shoes rocket boots
[22:17] <+Streetwalrus> Now samus is the kind to wear boots
[22:17] <+Streetwalrus> But not that bs
[22:17] <+OmnomIRC> (O)<JWinslow23> I'm not finding any suitless Samus from SSBB.
[22:17] <+OmnomIRC> (O)<JWinslow23> She always has her suit.
[22:17] <+OmnomIRC> (O)<JWinslow23> Street, why lie?
[22:18] <+OmnomIRC> (O)<JWinslow23> jk
[22:19] <+Streetwalrus> Zero suit samus /is/ in ssbb
[22:19] <+OmnomIRC> (O)<Hayleia> (and Project M :P)
[22:19] <+OmnomIRC> (O)<JWinslow23> I just haven't seen it. :/
[22:19] <+OmnomIRC> (O)<JWinslow23> Ah, now I see.
[22:20] <+OmnomIRC> (O)<JWinslow23> I was searching regular Samus. ::)
[22:20] <+Streetwalrus> I'd love her even more if she didn't look so... Rounded if you know what I mean
[22:20] <+OmnomIRC> (O)<Hayleia> no
[22:20] <+Streetwalrus> Big boobs, big butt, no muscles
[22:20] <+Streetwalrus> Want a pic ?
[22:20] <+Streetwalrus> :P
[22:20] <+Streetwalrus> Or rather, a drawing
[22:20] * matrefeytontias hears boobs and butt
[22:21] <+OmnomIRC> (O)<Hayleia> argh, Project M beeps too D:
[22:21] * matrefeytontias runs
[22:21] <+Streetwalrus> Hi matref
[22:21] <~Derpy> <Streetwalrus> Big boobs
[22:21] <+OmnomIRC> (O)<Hayleia> lol matrefeytontias :P
[22:21] <~Derpy> O.O
[22:21] <matrefeytontias> helloes :3
[22:21] <+OmnomIRC> (O)<JWinslow23> No.
[22:21] <+Streetwalrus> Heh derpy
[22:21] <+OmnomIRC> (O)<JWinslow23> Let's change the subject.
[22:21] <+OmnomIRC> (#) EeemsBot has kicked OmnomIRC from #omnimaga (flood)
[22:21] <+Streetwalrus> Talking about samus's evolution over time
[22:21] <+OmnomIRC> (O)<JWinslow23> Let's just talk about 80's Samus.
[22:21] <matrefeytontias> XD
[22:21] * Streetwalrus prods derpy :I
[22:21] <+OmnomIRC> (O)<JWinslow23> JUSTIN BAILEY, anyone? :p
[22:21] <~Derpy> but but but
[22:21] * Derpy boops Streetwalrus
[22:22] <+OmnomIRC> (O)<Hayleia> I misread that "but but but" :P
[22:22] <+OmnomIRC> (O)<Hayleia> and that "boops" :P
[22:22] <+OmnomIRC> (O)<Hayleia> jk
[22:22] * matrefeytontias kills Hayleia
[22:22] <+OmnomIRC> (O)<Hayleia> and where is ElementCoder ?
[22:22] <+OmnomIRC> (O)<Hayleia> matrefeytontias, you were the one to start it :P
[22:22] <+OmnomIRC> (#)* OmnomIRC has joined #omnimaga
[22:22] <matrefeytontias> excuse me ?
[22:22] <+OmnomIRC> (O)<Hayleia> ElementCoder is always there when the convo is about girls usually
[22:22] <matrefeytontias> <Streetwalrus> Big boobs, big butt, no muscles
[22:23] <+OmnomIRC> (O)<Hayleia> I excuse you :P
[22:23] <matrefeytontias> he was the one starting it
[22:23] <+Streetwalrus> LOL
[22:23] <+Streetwalrus> Someone put this convo in the funny quotes thread pls
[22:23] <matrefeytontias> Hayleia I think your mistook Element for Eiyeron :P
[22:23] <matrefeytontias> I can't : laziness
[22:23] <+OmnomIRC> (O)<Hayleia> nope, I really mean ElementCoder
[22:23] * matrefeytontias runs
[22:24] <matrefeytontias> oh well I apparently didn't talk to him enough
I'm a bit surprised I was mentioned here :P

TI-Nspire / Re: [Ndless] CoreTemp Remote
« on: May 18, 2014, 04:02:23 pm »
Wow that nspire sure has some epic specs o.o
Nice program though. Could something similar be made for the calculator itself? It wouldn't be very useful I think, but maybe it'd be a nice gimmick.

Computer Programming / Re: Two body simulation
« on: May 12, 2014, 02:17:01 pm »
Those were just some test conditions.

I forgot a minus sign in the gravitational force. Everything works fine now :)

Computer Programming / [Solved] Two body simulation
« on: May 12, 2014, 09:25:35 am »
I'm trying to make a two body simulation, but it doesn't seem to work :( Plotting x vs y should be circular or elliptical right? Am I choosing the wrong starting conditions or is my way of doing it just wrong?

Code: [Select]
#!/usr/bin/env python
Two body simulation.

from __future__ import division
import math
import matplotlib.pyplot as pyp
import numpy as np

# Gravitational constant (N*m^2*kg^-2)
G = 6.674e-11
# A giga year in seconds.
gyrts = math.pi * 1e7 * 1e9

def Fgrav(M, m, r):
    ''' Gravitational force of two bodies attracting each other.
    return -G * M * m / r**2
# Solar mass (kg)
M = 1.989e30
# Earth mass (kg)
m = 5.9721e24

# Initial conditions.
# Position (m).
x, y = 150e9, 0
X, Y = 0, 0

# Velocity (m/s).
vx, vy = 0, 30e3
Vx, Vy = 0, 0

time = 5*math.pi*1e7
t = 0
dt = 1000
xarr, yarr, rarr, tarr = [], [], [], []
while t < time:
    # Update the positions.
    x += vx * dt
    y += vy * dt
    # Calculate the separation vector.
    dx = x - X
    dy = y - Y
    r2 = dx*dx + dy*dy + 1e-4
    r = np.sqrt(r2)
    #print 'dx, dy: ', dx, dy
    # Calculate components of the gravitational force.
    fgrav_x = Fgrav(M, m, r) * dx / r
    fgrav_y = Fgrav(M, m, r) * dy / r
    #print 'Fgrav: ', fgrav_x, fgrav_y
    # Update the velocities.
    vx += (fgrav_x / m) * dt
    vy += (fgrav_y / m) * dt
    Vx += (fgrav_x / M) * dt
    Vy += (fgrav_y / M) * dt
    #print 'vx, vy: ', vx, vy
    X += Vx * dt
    Y += Vy * dt
    # Store all data.
    xarr.append(dx); yarr.append(dy); rarr.append(r)
    t += dt

fig, (ax1, ax2) = pyp.subplots(2, 'nom')
ax1.plot(xarr, yarr)
ax1.set_xlabel('$x$ (m)'); ax1.set_ylabel('$y$ (m)')
ax2.plot(tarr, rarr)
ax2.set_xlabel('$t$ (s)'); ax2.set_ylabel('$r$ (m)')

Edit: Updated with non-broken code.

General Calculator Help / Re: ti84+SE keyboard stopped working
« on: April 23, 2014, 12:42:44 pm »
Those sealable plastic bags.

ASM / [ARM/Nspire] Drawing sprites
« on: February 01, 2014, 01:29:30 pm »
So I have the following piece of code which draws a sprite on the screen:
Code: [Select]
#include <os.h>
main: .global main
push {r4-r11, lr}
bl lcd_ingray
bl clrscr
ldr r0, =0xC0000010
ldr r0, [r0]
mov r2, #8
adr r1, sprite
add r0, #200 @ x
add r0, #SCREEN_WIDTH/2 * 80 @ y
ldr r3, [r1], #4
str r3, [r0]
add r0, #SCREEN_WIDTH/2
subs r2, #1
bne draw @ if there are lines left, draw the next one
bl wait_key_pressed
mov r0, #0
pop {r4-r11, pc}

sprite: .word 0x00000000, 0x00000000, 0x00FFFF00, 0x00FFFF00, 0x00FFFF00, 0x00FFFF00, 0x00000000, 0x00000000
This is probably a stupid question, but the problem I'm facing is that I can only use x coordinates that are a multiple of 4. What would I need to do to be able to use any number for the x coordinate?

Ndless / Re: ndless 3.2
« on: January 31, 2014, 04:20:14 pm »
The main reason I think is because ndless also opens the way to cheating. Allowing ndless could cause the nspire becoming disallowed on exams and TI would lose a part of their income.

Ndless / Re: ndless 3.2
« on: January 31, 2014, 02:25:01 pm »
Nobody knows that. All you can do is wait until it comes or try and help out yourself if you can :)

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