AALEKH

%d: Int
%f: float, double
%c: character
%s: string
%ld: long int
%e: Used to express small numbers in terms of exponentials
%lf: double

AALEKH

\a      Write a <bell> character.
\b      Write a <backspace> character.
\f      Write a <form-feed> character.
\n      Write a <new-line> character.
\r      Write a <carriage return> character.
\t      Write a <tab> character.
\v      Write a <vertical tab> character.
\´      Write a <single quote> character.
\\      Write a backslash character.
\num    Write a byte whose value is the 1-, 2-, or 3-digit octal number num.  Multibyte characters can be constructed using multiple \num sequences.

AALEKH

>>A = [1 2; 3 5]
A =

   1   2
   3   5

>>sum(A, 1)
ans =

   4   7

AALEKH

function mat = label2mat(label, size)

if ~exist('size', 'var') || isempty(size)
    size = 10;
end

if label > size
    error('Label (%d) should be < size (%d).', label, size);
end

AALEKH

octave:12> a = [1 2;3 4]
a =

   1   2
   3   4

octave:13> a(:,1)
ans =

   1

AALEKH

Since you seem to be well versed in Optimization algorithms and Machine Learning, you should consider participating in 
ongoing Conference Competitions/Workshops for ex Gecco has several competitions running right now: 
https://gecco-2020.sigevo.org/index.html/Competitions; in addition there are many Upcoming competitions and workshops in 
ECCV(and many other conferences too, check out list of conferences in this brilliant space: https://aideadlin.es): 
https://eccv2020.eu/workshops/ working on such problems can provide you an unique exposure(that even some internship might 
not cover), plus there is always doors open for open source project contributions at many organization which to be honest 
is bed rock of many your prospective internship that you might be targetting, a great post to summarize this point is 
shared by our senior Vaidik sir here: https://www.linkedin.com/posts/vaidik_interns-internship-internshipprogram-activity-6660997288166600704-7Bqs/ .
Don't feel stuck with conventional paths that have

AALEKH

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

AALEKH

f = open("enter_file_name", 'r')
data = f.read()
rows = data.split('\n')
weather_data = []
for row in rows:
    sp_row = row.split(',')
    weather_data.append(sp_row)

AALEKH

RowNumber,CustomerId,Surname,CreditScore,Geography,Gender,Age,Tenure,Balance,NumOfProducts,HasCrCard,IsActiveMember,EstimatedSalary,Exited
1,15634602,Hargrave,619,France,Female,42,2,0,1,1,1,101348.88,1
2,15647311,Hill,608,Spain,Female,41,1,83807.86,1,0,1,112542.58,0
3,15619304,Onio,502,France,Female,42,8,159660.8,3,1,0,113931.57,1
4,15701354,Boni,699,France,Female,39,1,0,2,0,0,93826.63,0
5,15737888,Mitchell,850,Spain,Female,43,2,125510.82,1,1,1,79084.1,0
6,15574012,Chu,645,Spain,Male,44,8,113755.78,2,1,0,149756.71,1
7,15592531,Bartlett,822,France,Male,50,7,0,2,1,1,10062.8,0
8,15656148,Obinna,376,Germany,Female,29,4,115046.74,4,1,0,119346.88,1
9,15792365,He,501,France,Male,44,4,142051.07,2,0,1,74940.5,0

AALEKH

Economics & Software Development - Book List

The following books are ordered in descending order of Matthew's preference.

The Art of Strategy

by Avinash K. Dixit

Recommended by Ted Neward. A different perspective and writing style from the other volumes listed.

“I am hard pressed to think of another book that can match the combination of practical insights and reading enjoyment.”—Steven Levitt