sir isakk Newton was the first mathematician to use letters and numbers
first digit time second digit and second digit times first digit then repeat
Since the order of the numbers (digits) does not matter in a combination, there is just 1.
time signature
The number of permutations of the letters in the word SCHOOLS is the number of permutations of 7 things taken 7 at a time, which is 5040. However, since two of the letters, S and O, are duplicated, the number of distinct permutations is one fourth of that, or 1260.
Since you are using in the arrengement the all 4 letters, then there are 4! = 4*3*2*1 = 24 permutations.
Numbers on a phone? OR Time?
At one point in time it was said that he was a mathematician
Do not know what website you are using to buy tickets, but the "no letters" means only numbers. At one time, phone numbers had a prefix, like Sherwood 9-2226. You used SH (74) for the first two numbers. Has not be used in the US in many years.
Please ask the question again. This time, include the name of the mathematician.
The time signiture
Karl F. Gauss is generally regarded as the best pure mathematician.
It's not difficult to find, and almost anyone can do it. It's 5,050 . There's a famous story about the time that the great German mathematician Prof. Gauss did it. What made it so special was the fact that according to the story, he was 5 years old at the time, and THAT was impressive !
Rene Descartes was a French mathematician who created the coordinate plane on which linear equations are plotted.
Theodysius of Bithynia invented the first sundial in the time period of 160 BC - 100 BC. Theodysius was a Greek astronomer and mathematician.
Aryabhatta
The Akkadian alphabet was the first to have vowels, before that all letters were consenants-Hebrew for a long time had no vowels.
Sir Isaac Newton is credited as having invented Calculus. That is a method of using mathematical formulae to calculate difficult unknown measurements, such as the volume of an awkwardly shaped object i.e a Ship. It is possible that others did something similar before. Using 'letters as numbers' may also have been done much earlier. Sir Isaac Newton may be the first person to be 'published' and widely read; that does not make him the first.