A History of Mathematics |
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Page 9
... reservoir , and builds the temple of Phthah at Memphis . " The Egyptians built the pyramids at a very early period . Surely a people engaging in enterprises of such magnitude must have known something of mathematics THE EGYPTIANS . 9 II.
... reservoir , and builds the temple of Phthah at Memphis . " The Egyptians built the pyramids at a very early period . Surely a people engaging in enterprises of such magnitude must have known something of mathematics THE EGYPTIANS . 9 II.
Page 10
Florian Cajori. enterprises of such magnitude must have known something of mathematics at least of practical mathematics . All Greek writers are unanimous in ascribing , without envy , to Egypt the priority of invention in the ...
Florian Cajori. enterprises of such magnitude must have known something of mathematics at least of practical mathematics . All Greek writers are unanimous in ascribing , without envy , to Egypt the priority of invention in the ...
Page 11
... known to us - puts us at once in contact with the mathe- matical thought in Egypt of three or five thousand years It is entitled " Directions for obtaining the Knowledge . of all Dark Things . " We see from it that the Egyptians cared ...
... known to us - puts us at once in contact with the mathe- matical thought in Egypt of three or five thousand years It is entitled " Directions for obtaining the Knowledge . of all Dark Things . " We see from it that the Egyptians cared ...
Page 12
... known property of the right triangle , for the special case at least when the sides are in the ratio 3 : 4 : 5 . On the walls of the celebrated temple of Horus at Edfu have been found hieroglyphics , written about 100 B.C. , which ...
... known property of the right triangle , for the special case at least when the sides are in the ratio 3 : 4 : 5 . On the walls of the celebrated temple of Horus at Edfu have been found hieroglyphics , written about 100 B.C. , which ...
Page 15
... known quantity is called ' hau ' or heap . Thus the problem , “ heap , its 4 , its whole , it makes 19 , " i.e. + x = 19 . In this X case , the solution is as follows : 8 x 7 19 ; = = 7 2 } } ; x = 161 But in other problems , the ...
... known quantity is called ' hau ' or heap . Thus the problem , “ heap , its 4 , its whole , it makes 19 , " i.e. + x = 19 . In this X case , the solution is as follows : 8 x 7 19 ; = = 7 2 } } ; x = 161 But in other problems , the ...
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Popular passages
Page 202 - I was so persecuted with discussions arising out of my theory of light, that I blamed my own imprudence for parting with so substantial a blessing as my quiet, to run after a shadow.
Page 298 - THEOREM If a straight line falling on two other straight lines, make the alternate angles equal to one another, the two straight lines shall be parallel to one another.
Page 21 - The formula states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the base and altitude.