Quickly generate Fibonacci-like sequence in your browser. To get your series, just specify the two initial values and number of elements in the series in the options below, and this utility will generate that many Fibonacci-like numbers. Created by developers from team Browserling.
Quickly generate Fibonacci-like sequence in your browser. To get your series, just specify the two initial values and number of elements in the series in the options below, and this utility will generate that many Fibonacci-like numbers. Created by developers from team Browserling.
This is an online browser-based utility for generating Fibonacci-like sequence with your own first two initial values. In the real Fibonacci sequence, the first two values are 1 and 1, and the next value is obtained by adding them 1 + 1 = 2. Then using this new value the next one is calculated as 2 + 1 = 3, and so on. Similarly, in the Lucas series, the first two values are 2 and 1, and the next one is 2 + 1 = 3. With this tool, you can create your own Fibonacci and Lucas-like series. By default, this tool will calculate an increasing sequence, however in the options above you can also choose a decreasing sequence. In this case, each next value will be calculated as the difference between the two previous ones. For example, the Negafibonacci is a decreasing sequence, and calculates as following: 0 - 1 = -1, then 1 - (-1) = 2, then (-1) - 2 = -3, and so on. The first two values of the series can be positive, negative, or even fractions. You can also specify how many numbers to calculate and what symbol to use to separate them. To make things more interesting, we've added an interesting option, which generates an alternating series by changing the sign of every second term to the opposite. That's numberwang!
This is an online browser-based utility for generating Fibonacci-like sequence with your own first two initial values. In the real Fibonacci sequence, the first two values are 1 and 1, and the next value is obtained by adding them 1 + 1 = 2. Then using this new value the next one is calculated as 2 + 1 = 3, and so on. Similarly, in the Lucas series, the first two values are 2 and 1, and the next one is 2 + 1 = 3. With this tool, you can create your own Fibonacci and Lucas-like series. By default, this tool will calculate an increasing sequence, however in the options above you can also choose a decreasing sequence. In this case, each next value will be calculated as the difference between the two previous ones. For example, the Negafibonacci is a decreasing sequence, and calculates as following: 0 - 1 = -1, then 1 - (-1) = 2, then (-1) - 2 = -3, and so on. The first two values of the series can be positive, negative, or even fractions. You can also specify how many numbers to calculate and what symbol to use to separate them. To make things more interesting, we've added an interesting option, which generates an alternating series by changing the sign of every second term to the opposite. That's numberwang!
In this example, we set the initial values to 0 and 1. All the following numbers are calculated as the sum of the two previous ones. Such initial conditions correspond to the original Fibonacci sequence.
In this example, the first value is 2 and the second is 1. The third value is calculated as their sum, that is, 1 + 2 = 3, the fourth one equals 1 + 3 = 4, and so on. Thus, we get the values corresponding to the numbers in the Lucas sequence. We compute twenty such values and separate them with the comma symbol.
In this example, each number of the sequence is equal to the difference between the two previous ones. We start with values 0 and 1 as initial values and then to find the following element, we subtract the second one from the first one: 0 - 1 = -1. Then we use this value to calculate another element 1 - (-1) = 2, and another one (-1) - 2 = -3. As you can see, all thirty calculated values corresponding to the elements of the Negafibonacci sequence.
In this example, we generate a sequence with an alternating sign. As the first two values are fractional (2.5 and 22.25), most of the following elements of the sequence are fractional too. The "Alternating Sign" option flips the sign of every second term, starting from the third value.
You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!
Create a list of numberwang numbers.
Create a list of neat looking numbers.
Visualize a number by drawing its digits as a color gradient.
Create a matrix of numbers with rows and cols having same sum.
Given numbers and a grammar, recursively rewrite them.
Create a number from the mantissa, base, and exponent.
Show how a fp number is represented in a computer.
Convert a number to the a×10<sup>b</sup> form.
Convert a number in scientific notation to a regular number.
Create a list of unary numbers (1, 11, 111, 1111, …).
Create a list of alphabetic numbers (a, b, c, …, z, aa, ab, …).
Create a list of Roman numbers (i, ii, iii, iv, v…).
Create a list of Braille numbers (⠂, ⠆, ⠒, ⠲, ⠢, …).
Create a list of random binary numbers.
Create a list of random octal numbers.
Create a list of random decimal numbers.
Create a list of random hexadecimal numbers.
Calculate a cumulative sum of a list of numbers.
Calculate a cumulative difference of a list of numbers.
Calculate a cumulative product of a list of numbers.
Divide two numbers and find their quotient.
Divide the digits of the given number.
Find the factorial of a number.
Find the average of multiple numbers.
Find the mean of multiple numbers.
Find the mode of multiple numbers.
Create one or more anagrams of a number.
Create a list of digit bigrams from a number.
Create a list of digit trigrams from a number.
Create a list of digit ngrams from a number.
Create a list of polynomial progression numbers.
Create a list of metric prefixes.
Report how many digits appear how many times.
Convert a cardinal number to an ordinal number.
Convert an ordinal number to a cardinal number.
Convert Arabic numerals to Roman numerals.
Convert Roman Numerals to Arabic numerals.
Calculate a series of extended Fibonacci numbers.
Find numbers that are both Fibonacci numbers and primes.
Check if a number is a Fibonacci number.
Check if a number is both a Fibonacci number and a prime.
Create a sequence of Fibonacci words.
Create a sequence of Tribonacci words.
Create a sequence of Tetranacci words.
Create a sequence of Pentanacci words.
Calculate a series of extended Lucas numbers.
Calculate a series of extended Lucas numbers.
Check if a number is both a Lucas number and a prime.
Calculate a sequence of Moser-Bruijn numbers.
Calculate a sequence of Oldenburger-Kolakoski numbers.
Calculate a sequence of Stanley numbers.
Calculate a sequence of self-describing Gijswijt numbers.
Calculate a sequence of Rusin-Shapiro numbers.
Calculate a sequence of Baum-Sweet numbers.
Calculate members of Thue-Morse number series.
Create a list of perfect numbers.
Create a list of almost perfect numbers.
Calculate a sequence of abundant numbers.
Calculate a sequence of deficient numbers.
Generate a list of paperfolding sequence numbers.
Create a list of numbers that are not prime.
Generate an LCD display that shows the given number.
Generate a table of numbers.
Check if the given number is a perfect number.
Check if the given number is an abundant number.
Check if the given number is a deficient number.
Find the modulus of a number.
Group together digits of a number.
Create a list of digits from a number.
Apply sprintf or printf function to numbers.
Let Zalgo destroy your numbers.
Repeat a number multiple times.
Create a mirror copy of a number.
Add zeros to a number.
Add a padding of custom symbols to a number.
Reverse the order of digits of a number.
Cyclically rotate digits of a number to the left or right.
Add one to the given number.
Add one to every digit in a number.
Subtract one from the given number.
Subtract one from every digit in a number.
Discover patterns in sequences of numbers.
Find how often numeric values occur.
Find x% of a number.
Create numbers of arbitrary length and properties.
Print the Googol/Google number, which is 10<sup>100</sup>.
Print the biggest number in the world.
Create a list of big numbers.
Print the smallest number in the world.
Create a list of small numbers.
Create a list of natural numbers.
Create a list of rational numbers.
Create a series of numbers where all terms are the same.
Create a sequence of real numbers.
Create a list of complex numbers.
Create a sequence of binary numbers.
Create a sequence of number pairs.
Create a sequence of number triples.
Create a sequence of number n-tuples.
Create a number with not that many digits.
Create a number with many digits.
Interweave two or more number digit-by-digit.
Rewrite a number in the decimal representation.
Convert a fraction to a decimal number.
Convert a decimal number to a fraction.
Convert a base two number to base eight number.
Convert a base two number to base ten number.
Convert a base two number to base sixteen number.
Convert a base eight number to base two number.
Convert a base eight number to base ten number.
Convert a base eight number to base sixteen number.
Convert a base ten number to base two number.
Convert a base ten number to base eight number.
Convert a base ten number to base sixteen number.
Convert a base sixteen number to base two number.
Convert a base sixteen number to base eight number.
Convert a base sixteen number to base ten number.
Convert any number in any base to any other base.
Change the significand of a number.
Change the power of a number.
Replace digits in a number with alphabet letters.
Form a spiral from the digits of a number.
Form a circle from the digits of a number.
Form a tree from the given numbers.
Form a tree from the digits of a number.
Remove the decimal separator from a decimal number.
Modify numbers so they are almost the same but have errors.
Generate various number typos.
Write numbers in a different font.
Write numbers in a bold font.
Write numbers with an underline below them.
Write numbers with a strikethrough on them.
Write numbers in a superscript font.
Write numbers in a subscript font.
Change digits in a number to Unicode look-alikes.
Change the given numbers a little bit.
Change the digits of the given numbers a little bit.
Calculate the complexity (entropy) of a number.
Test if the given number is numberwang.
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make peoples' lives easier, so we created this collection of number crunching tools. Our tools have the simplest user interface that doesn't require advanced computer skills and they are used by millions of people every month. Our number tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
