### control system using anaconda

```conda install numpy scipy matplotlib    # if not yet installed
conda install -c conda-forge control slycot
```

-----------------------------------------------------

# secord.py - demonstrate some standard MATLAB commands
# RMM, 25 May 09
import os
import matplotlib.pyplot as plt # MATLAB plotting functions
from control.matlab import * # MATLAB-like functions
# Parameters defining the system
m = 250.0 # system mass
k = 40.0 # spring constant
b = 60.0 # damping constant

# System matrices
A = [[0, 1.], [-k/m, -b/m]]
B = [[0], [1/m]]
C = [[1., 0]]
sys = ss(A, B, C, 0)

# Step response for the system
plt.figure(1)
yout, T = step(sys)
plt.plot(T.T, yout.T)
plt.show(block=False)

# Bode plot for the system
plt.figure(2)
mag, phase, om = bode(sys, logspace(-2, 2), plot=True)
plt.show(block=False)

# Nyquist plot for the system
plt.figure(3)
nyquist(sys)
plt.show(block=False)

# Root lcous plot for the system
rlocus(sys)

if 'PYCONTROL_TEST_EXAMPLES' not in os.environ:
plt.show()

output:

src::

https://github.com/python-control/python-control

https://github.com/python-control/python-control/tree/master/examples

https://anaconda.org/conda-forge/control

create transfer function

```>>> # Create a MIMO transfer function object
>>> # The transfer function from the 2nd input to the 1st output is
>>> # (3s + 4) / (6s^2 + 5s + 4).
>>> num = [[[1., 2.], [3., 4.]], [[5., 6.], [7., 8.]]]
>>> den = [[[9., 8., 7.], [6., 5., 4.]], [[3., 2., 1.], [-1., -2., -3.]]]
>>> sys1 = tf(num, den)```
`ploting`
```mag, phase, omega = bode(sys1)
```

`from scipy import signalimport matplotlib.pyplot as plts1 = signal.lti([1], [1, 1])w, mag, phase = signal.bode(s1)plt.figure()plt.semilogx(w, mag)    # bode magnitude plotplt.figure()plt.semilogx(w, phase)  # bode phase plotplt.show()`

### sxhkd volume andbrightness config for dwm on void

xbps-install  sxhkd ------------ mkdir .config/sxhkd cd .config/sxhkd nano/vim sxhkdrc -------------------------------- XF86AudioRaiseVolume         amixer -c 1 -- sset Master 2db+ XF86AudioLowerVolume         amixer -c 1 -- sset Master 2db- XF86AudioMute         amixer -c 1 -- sset Master toggle alt + shift + Escape         pkill -USR1 -x sxhkd XF86MonBrightnessUp          xbacklight -inc 20 XF86MonBrightnessDown          xbacklight -dec 20 ------------------------------------------------------------- amixer -c card_no -- sset Interface volume run alsamixer to find card no and interface names xbps-install -S git git clone https://git.suckless.org/dwm xbps-install -S base-devel libX11-devel libXft-devel libXinerama-devel  vim config.mk # FREETYPEINC = \${X11INC}/freetype2 #comment for non-bsd make clean install   cp config.def.h config.h vim config.h xbps-install -S font-symbola #for emoji on statusbar support     void audio config xbps-i

### Hidden Wiki

Welcome to The Hidden Wiki New hidden wiki url 2015 http://zqktlwi4fecvo6ri.onion Add it to bookmarks and spread it!!! Editor's picks Bored? Pick a random page from the article index and replace one of these slots with it. The Matrix - Very nice to read. How to Exit the Matrix - Learn how to Protect yourself and your rights, online and off. Verifying PGP signatures - A short and simple how-to guide. In Praise Of Hawala - Anonymous informal value transfer system. Volunteer Here are five different things that you can help us out with. Plunder other hidden service lists for links and place them here! File the SnapBBSIndex links wherever they go. Set external links to HTTPS where available, good certificate, and same content. Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties. Introduction Points Ahmia.fi - Clearnet search engine for Tor Hidden Services (allows you