Examples of using Triangular numbers in English and their translations into Bulgarian
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The first six triangular numbers.
A square number is also the sum of two consecutive triangular numbers.
All square triangular numbers are found from the recursion.
Is the sum of the first six triangular numbers.
Most simply, the sum of two consecutive triangular numbers is a square number, with the sum being the square of the difference between the two(and thus the difference of the two being the square root of the sum).
The formula for the triangular numbers is.
I found out that 35 is a Tetrahedral Number, andis the sum of the first five Triangular Numbers.
The sum of any two consecutive triangular numbers is a square number. .
Is the fifth tetrahedral number(the sum of the first five triangular numbers).
The sum of two consecutive triangular numbers always makes a square number. .
A square number equals a sum of two consecutive triangular numbers.
Carl Friedrich Gauss discovers that every positive integer is representable as a sum of at most three triangular numbers.
Gauss also discovered that every positive integer is representable as a sum of at most three triangular numbers on 10 July and then jotted down in his diary the note:"ΕΥΡΗΚΑ!
This is a sequence that students often encounter at school: the triangular numbers.
In 1796, German mathematician and scientist Carl Friedrich Gauss discovered that every positive integer is representable as a sum of three triangular numbers(possibly including T0= 0), writing in his diary his famous words,"ΕΥΡΗΚΑ! num= Δ+ Δ+ Δ".
It is the 18th tetrahedral number because it is the sum of the first 18 triangular numbers.
Where the denominators contain partial sums of the sequence of reciprocals of triangular numbers i.e.
He discovered that every positive integer can be represented as the sum of at most 3 triangular numbers.
An explicit formula for the nth triangular number is.
Triangular number.
Also 666 is the 36th triangular number.
Is the 36-th triangular number.
Hence 153 is the triangular number of 17.
This means 666 is the 36th triangular number.
Is the 17th triangular number.
For every triangular number T n{\displaystyle T_{n}}, imagine a"half-square" arrangement of objects corresponding to the triangular number, as in the figure below.
A triangular number or triangle number counts objects arranged in an equilateral triangle, as in the diagram on the right.
Now we know that half of those were in our original triangle,so the 10th triangular number is 110/2= 55.
Half of those dots were in the original triangle,so the 1000th triangular number is(1000 x 1001)/2= 500500.
The nth triangular number is the number of dots in the triangular arrangement with n dots on a side, and is equal to the sum of the n naturalnumbers from 1 to n.