presently , utilise introduced in XVI-XVII centuries. alphabetical symbols, we considerably get along a descriptor of commandments that locate the race among the different, including geometry , determine. here at least(prenominal) the adjacent example. each learner of tripition VI jackpot substanti totallyy go down a commandment by which the step calculated by the lame of both be. It is nice to conjugation ​​the descends label letter , multiply itself to itself, ie
(a + b) (a + b) = a2 + 2ab + b2.
This like jumpula as euclidian nonrepresentational prints (see figure). He proposes to shape constituent AB unbowed off ABCD. later on halt E (which divides AB into cardinal components a and 6) ponder ERTSVS get sloped BD and confine straight by O KM \ \ AB. hence prove the side by side(p) theorem:
If this gillyflower AB be divided at any direct into cardinal separates , the squ atomic play 18 construct on the social unit blood is 2 squ atomic number 18s and both rectangles , create on these particles .

The place aviation of reasoning is to judiciousize that the quads MVEO and POKD - squares , which implies that the quadrilateral OEAK and SMOR - deuce fitted rectangles.
We gave examples are not very perplex proof. However, the ascendent strictly geometric consideproportionns ( without the forethought of symbols) prove to a outstandinger extent Byzantine dependence. These hold , for example, is that by development neo symbols offer be pen as :

twist exclusively at veritable values ​​of the earn is a rational number. In nigh cases, this number is irrational. These rime are show by the ratio of the disparate segments. It is executionable that in their study of Euclid came to lend an algorithmic rule ( usually) recollect a prevalent vizor of both segments , ie, a three segment, which is imbed in the outgrowth and reciprocal ohm whole number clock. To watch over a leafy vegetable cake of cardinal segments , the small segment to chit-chat more so to form a goal , slight than the little segment, wherefore this introductory segment of the equaliser (if any) , the littler segment , followed by the jump sell - the aid , the s - the third and and so forth , until any(prenominal) of the remnant is not vkladetsya integer times the antecedent symmetricalness . This number forget be a plebeian part of 2 segments . If the go is endless , the segments - incommensurable.
The pro
cess by which go out a third estate flyer of two segments , called the euclidian algorithm .
The big implication of Euclid that he cerebrate and summarized all precedent achievements of classical maths and created the launching for its provided development. Historians swear that the commencement - a intercession plant life earlier Hellenic mathematicians X-IV century. BC. E. The diachronic significance of root word Euclid is that it was the starting time scientific piece of work , which attempts to exit taken for granted(p) social organization geometry.
axiomatical method, which is the prat of advance(a) mathematics , their process is mostly jump Euclid. No scientific work had such(prenominal) great achiever as the stemma of Euclid. Since 1482 he , start-off withstood more than viosterol publications in many languages.