Learning mathematics from primary school, sudak certainly familiar with the operations of addition, subtraction, multiplication, division in mathematics. If diucap orally five plus two equals seven. Well if it is required to make in writing 5 + 2 = 7. At first glance it was definitely, definitely will not invite the question mark again. But there is a secret and the question of writing.
Try considered more carefully, okay five declared with 5, as well as two by two and seven with 7. But why summation, when using the words added should be symbolized by +. From the time of the origin of the plus symbol, as well as the sign -, x,:. All turned out to have its own history.
Since the days of ancient Babylonia, mathematicians trying to save time and energy by replacing words with certain symbols. Simbo will be used commonly and generally agreed to represent a purpose or a particular word. Some of the ways of writing a brief in the form of the symbol it is simple numbers and signs +, -, x, and ÷ representing basic arithmetic operations in step, ie addition, subtraction, multiplication, and division. The four symbols are symbols that we naturally use in the calculation. Actually, these symbols are still relatively new in the history of mathematics. Some ancient symbol that has been used in an arithmetic operation or mathematical dilhat in the image below.
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| Mathematical Operations Symbols |
Operation Multiplication, mark x which is based on the Cross of Saint Andrew. This symbol is known as the epitome of the above used Leibniz in Germany in the 17th century. But according to him it was too similar x x for anu numbers in algebra. The division, in France, in the 18th century, Y.E. Gallimard uses the letter D inverted for the division. A sign that we are using has probably originated from the simple dividing line coupled with the points above and below it.
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