krantikal

@echo off
:: make gif transparent ...
:: cleangif img.gif ...
:: produces img_clear.gif ...
:: uses im convert ...
:: Shiva, Feb 12, 2018 ... 
magick convert %1.gif -fuzz 10% -transparent white %1_clear.gif

krantikal

coordsys.py

It is a simple module (developed for illustrative purposes) with functions for converting between radians and degrees and also between spherical and cartesian coordinates)

Shiva, 2014

krantikal

# Testme\aacode\MidsemSolP1.py ; also contains ipynb
from pylab import *


# Construct arrays for two vectors given as a: (1,2,4) and b: (1,1,3)
# Find the component of a parallel to b
# Express a as a sum of vectors parallel and perpendicular to b

a=array([1,2,4])
b=array([1,1,3])

krantikal

Maxima: Housekeeping facts

Autocomplete

1. ctrl + k autocompletes, e.g sol ctrl+k
2. shift + ctrl + k shows usage as well, e.g sol shift + ctrl +k

Greek vars

esc a esc gives you alpha (greek). Can be used as var name.

krantikal

• wikibook on listings
• minted

krantikal

LaTeX includegraphics

%% Graphics Path
In Preamble:
\graphicspath{ {./pix/} }

%% Forms that this command taketh

\includegraphics[scale=1.5]{lion-logo}
\includegraphics[scale=1.2, angle=45]{lion-logo}

krantikal

LaTeX Bibliography

Dear Socratis,

See \cite{verma} and \cite{poschel}....
........
\begin{thebibliography}{100} %Assuming maximum 100 entries not more 
 \bibitem{poschel} \textbf{Pöschel, Thorsten, and Schwager, Thomas. \textit{"Molecular Dynamics". Computational Granular Dynamics: Models and Algorithms.}} Springer-Verlag Berlin Heidelberg (2005)
 \bibitem{verma} \textbf{Verma, H C. \textit{"Rotational Mechanics". Concepts of Physics [Part 1].}} Bharati Bhawan (P \& D) (2012).
\end{thebibliography}  

krantikal

# Docked Gnuplot windows
# Plots share space with code window
# If there are more than one plot, they will be stacked


set term win docked
plot sin(x)
set term win 2 docked
plot sin(x)+cos(x)

krantikal

# output gif is must
set terminal gif animate delay 100
set output 'output.gif'

stats 'data.dat' nooutput
set xrange [-0.5:1.5]
set yrange [-0.5:5.5]

#do for [i=1:int(STATS_blocks)] {
#   plot 'data.dat' index (i-1) with circles

krantikal

function y = myplus( x,y )
%myplus returns the sum minus the product of the two input variables. 

y = x+y - x.*y;

end