questionedithistorytranslations

In which year did Leonhard Euler introduced the symbol "i" to represent the square root of -1 ?

in 1555
in 1666
in 1777
in 1888
The letter "i" as a designation of the element from -1 was proposed by Leonhard Euler in 1777. Later, from 1801, this designation was popularized by Carl Friedrich Gauss. Currently, it is the most commonly used symbol of the imaginary unit.
Ts
0
Correct this question
wikipedia → 1777 in science
3
Very interesting!
reach: rather globalgeometryhistorymathematicsnumbers
Geometry quizNumbers quizMathematics quiz
  You will play as

Answers by country

in 1555
in 1666
in 1777
in 1888
answers
flagIsrael
20%
13%
66%
0%
15
flagGermany
0%
16%
64%
18%
103
flagthe Netherlands
7%
11%
57%
23%
26
flagGhana
9%
27%
54%
9%
11
flagItaly
0%
30%
53%
15%
13
flagIndia
13%
18%
51%
14%
130
flagDenmark
11%
27%
50%
11%
18
flagAustralia
11%
22%
48%
14%
35
flagCanada
9%
28%
47%
14%
21
flagMalaysia
7%
7%
46%
30%
13
flagGreece
16%
33%
44%
5%
18
flagPoland
7%
24%
43%
24%
7352
flagFrance
0%
18%
43%
37%
16
flagthe United States
17%
27%
42%
11%
198
flagthe United Kingdom
11%
22%
42%
20%
135
flagthe Philippines
22%
33%
33%
11%
18
flagRepublic of Ireland
7%
46%
23%
23%
13

Which direction is not possible to point at when standing at the South Pole?

east
west
north
neither east, west, nor south

What is the maximum distance a plane can fly travelling constantly North?

10,002 km
20,004 km
40,007 km
It can fly endlessly (as long it can)

How many edges does a Möbius strip have?

one
two
three
four

What number is the pattern for the construction of Dante Alighieri's song "Divine Comedy"?

9
3
7
5