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it was around the time of christ.

Although the first set of rules for dealing with negative numbers was stated in the 7th century by the Indian mathematician Brahmagupta, it is surprising that in 1758 the British mathematician Francis Maseres was claiming that negative numbers "... darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple" .

Maseres and his contemporary, William Friend took the view that negative numbers did not exist. However, other mathematicians around the same time had decided that negative numbers could be used as long as they had been eliminated during the calculations where they appeared.

It was not until the 19th century when British mathematicians like De Morgan, Peacock, and others, began to investigate the 'laws of arithmetic' in terms of logical definitions that the problem of negative numbers was finally sorted out.

However, there were references to negative numbers far earlier...In 200 BCE the Chinese number rod system (see note1 below) represented positive numbers in Red and Negative numbers in black. An article describing this system can be found here . These were used for commercial and tax calculations where the black cancelled out the red. The amount sold was positive (because of receiving money) and the amount spent in purchasing something was negative (because of paying out); so a money balance was positive, and a deficit negative.
Negative intergers were accepted around the time of Christ.

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Q: What century were negative integers finally accepted?
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What is it called if something is positive or negative?

Numbers that can be positive or negative include the integers, the rational numbers, the real numbers, and the complex numbers. All integers are rational numbers (numbers that can be written as a fraction, like 2/1), but most rational numbers are not integers -- like -1/2. (2/1, a rational, can be written as 2, an integer). The real numbers include all the rationals, plus many, many more numbers that can't be written as ratios or fractions, such as the square root of 2, pi, and the euler constant, e. As with the rational numbers and integers, there are as many negative real numbers as there are positive ones. Finally, we have the complex numbers. These include all of the real numbers, plus the roots of negative real numbers. Complex numbers are written in two parts -- a real part, plus an "imaginary" part (which is just as "real" as the real part, but is called "imaginary" for historical reasons). For example, 1 + i is a complex number with positive real and imaginary parts, while -1 - i is a complex number with negative real and imaginary parts. Positive and negative number systems are clearly very important in mathematics and in everyday life. They are all distinguished by the fact that they include magnitudes less than zero, as well as greater than zero (magnitudes of complex numbers are more complicated because complex numbers can have both positive and negative parts in one complex number!) There is also the term "non-zero" which refers to values that are positive or negative but not a value that is neither. It is a very important mathematical term since many functions (reciprocals, for example) can only have non-zero domains.


How do you divide negative mixed number?

The first stage in dividing by a negative mixed number would be to convert that number into a top-heavy or vulgar fraction. Once this has been done, you ignore the negative sign for the time being, and multiply the number by the denominator. After this, you divide by the numerator. Finally, you swap the sign of the number you started with. If you were dividing a negative number the answer is positive. If you were dividing a positive number the answer is negative.


What 3 numbers is the sum of 15?

There are an infinite number of triplets. Start with positive integers: 1 + 2 + 12, 1 + 3 + 11, etc Then introduce negative integers: 1 + 16 - 2, 1 + 17 - 3, etc Next try some rational fractions: 1 + 1.1 + 12.9, 1 + 1.2 + 12.8 etc and then negatives and rational fractions: 1 + 16.1 - 2.1, 1 + 17.1 - 3.1 etc Finally some irrationals: [1 + sqrt(3)] + [1 - sqrt(3)] + 13, etc Each one of these groups (except the first) has an infinite number of possible solutions.


What 2 cubed numbers equals another cubed number?

First of all, the question does not require the numbers to be integers. That being the case, there are an infinite number of solutions. One of them being: So 23 + 33 = (3√35)3 So, 2, 3 and the cibe root of 35 meet the requirements. If they do need to be integers, then (-1)3 + (1)3 = 03 is a possible solution. Finally if x, y and z need to be positive integers then xn + yn = zn does not have a solution for n>2 according to Fermat's last theorem.


Math Equation of sign tita is equevalent of ngatve zero What is the fraction of denamanator of negatve sign titah?

The question cannot be answered: sign tita can only be - or +. It does not have any value associated with it. So it could not be equivalent to negative zero. Next, there is no such thing as negative zero. Zero has no sign: it is neither negative nor positive. Finally, division by zero is not defined. It cannot have a value.