NOTES ON GOOGLE SEARCH


1 BOOLEANS AND BASIC OPERATORS

1.1 Booleans

expression1 expression2
expression1 AND expression2.
expression1 | expression2
expression1 OR expression2.
-expression
→ exclude expression.
(expression)
→ group several operators to control their order.

1.2 Character Strings

"word"
→ search for a word excluding synonyms.
"sentence"
→ search the exact sentence.
*
→ wildcard in an expression.
n..m
→ all integers between n and m (n<m).
$n
→ search a price in dollars.
€n
→ search a price in euros.

2 ADVANCED OPERATORS

2.1 Search by Field

intitle: expression
→ search expression in the title page.
inurl: expression
→ search expression in the URL.
intext: expression
→ search expression in the text.
site: address
→ search only in the address site;
related: address
→ search only sites related to adresse.
word1 AROUND(n) word2
→ search only pages where word1 is at n words from word2.
filetype: extension
→ search only a particular type of file.

2.2 Multiple Operators

allintitle: expression
→ equivalent to a multiple intitle.
allinurl: expression
→ equivalent to a multiple inurl.
allintext: expression
→ equivalent to a multiple intext.

2.3 Main Indexed File Types

Available formats with the filetype instruction:

swf, pdf, ps
→ Adobe;
ps
→ Postscript;
html
→ HTML;
xls, xslx
→ Microsoft Excel;
ppt, pptx
→ Microsoft PowerPoint;
doc, docx
→ Microsoft Word;
ods, odp, odt
→ Open Office;
rtf
→ Rich Text Format;
svg
→ Scalable Vector Graphics;
tex
→ LaTeX;
txt
→ text files;
c, cc, cpp, cxx, h, hpp
→ C/C++ codes;
java
→ Java codes;
pl
→ Perl scripts;
py
→ Python codes;
f, f90
→ Fortran codes;
xml
→ XML.

3 CALCULATOR

3.1 Basic Arithmetic

operators
+, -, *, /.
factorial
!.
modulo
%.
power
^.

3.2 Functions

trigonometric
sin, cos, tan.
inversee trigonometric
arcsin, arccos, arctan.
hyperbolic
sinh, cosh, tanh, arccosh, arcsinh, arctanh.
logarithmic
exp, ln, log, sqrt.
f(x)
→ plot the function f.

3.3 Mathematical Constants

e
→ exponential of 1.
(no term)
pi:: → π
i
→ square root of -1.

3.4 Physical Constants

amu
→ atomic mass unit.
au
→ astronomical unit.
k
→ Boltzmann constant.
eV
→ electron volt.
G
→ gravitational constant.
h
→ Planck constant.
c
→ speed of light.

3.5 Unit Conversion

x unit1 in unit2 → convert x from unit1 to unit2.

Currencies
→ USD, Euros, GBP, etc.
Masses
→ kg, g, lb, ton, etc.
Lengths
→ m, mile, feet, angstrom.
Surfaces
→ square kilometers, acres, hectares.
Volumes
→ gallon, l, teaspoon, pint.
Time
→ days, s, h, centuries, sideral years, etc.
Electricity
→ volt, amp, ohm.
Energy
→ calorie, joule, erg.
Power
→ watt, kilowatt, horsepower.
Information
→ bits, bytes, kbytes.
Numerical bases
→ decimal, hex, octal, binary.

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Author: F. Galliano
Last update: 05 janv. 2024