The Quadrature of the Circle: The Square Root of Two, and the Right-angled Triangle |
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... arc of the circle belonging to the quadrant will divide the outside 98 squares into two parts , which shall be to ... given circumference by the given diameter , we have 88 28 = 22 ÷ 7 = 3.142857 , or 3 , which is the true ratio of the ...
... arc of the circle belonging to the quadrant will divide the outside 98 squares into two parts , which shall be to ... given circumference by the given diameter , we have 88 28 = 22 ÷ 7 = 3.142857 , or 3 , which is the true ratio of the ...
Page 12
... arc of a circle , and from this he claimed to determine it by a geomet- rical construction which was entirely ... given , add to its radius the side of the inscribed square , and with this line as diameter describe a circle , in which is ...
... arc of a circle , and from this he claimed to determine it by a geomet- rical construction which was entirely ... given , add to its radius the side of the inscribed square , and with this line as diameter describe a circle , in which is ...
Page 26
... given area . If , for example , the arc is 60 ° the error is scarcely both . 6000 James Gregory distinguished himself in this controversy , and what- ever may be our opinion of his demonstration of the impossibility of the definite ...
... given area . If , for example , the arc is 60 ° the error is scarcely both . 6000 James Gregory distinguished himself in this controversy , and what- ever may be our opinion of his demonstration of the impossibility of the definite ...
Page 28
... given , calculating in this man- ner , give the near ratio of the diameter to the circumference of 1 to 3.141 . The tangent of a small arc as that of 30 ° might also be employed for the same purpose ; for this tangent is , or ; besides ...
... given , calculating in this man- ner , give the near ratio of the diameter to the circumference of 1 to 3.141 . The tangent of a small arc as that of 30 ° might also be employed for the same purpose ; for this tangent is , or ; besides ...
Page 30
... arcs whose tangents are given ; for there being no extraction of square roots in this formula , if the arcs have their tangents rational , the tangent of the sum will be so also ; and vice versa , an arc with a ra- tional tangent can be ...
... arcs whose tangents are given ; for there being no extraction of square roots in this formula , if the arcs have their tangents rational , the tangent of the sum will be so also ; and vice versa , an arc with a ra- tional tangent can be ...
Other editions - View all
The Quadrature of the Circle: The Square Root of Two, and the Right-Angled ... William Alexander. Myers No preview available - 2015 |
The Quadrature of the Circle: The Square Root of Two, and the Right-Angled ... William Alexander Myers No preview available - 2018 |
Common terms and phrases
apothem arc cutting Archimedes ARTICLE assumed circumference assumed diameter Bisect chord circumscribed double triangle circumscribed polygon consequently cosine cumference curve decimal places deducted demonstration diagonal difference discovery division and cancellation double the number draw expressed extracting the square figures geometrical geometricians give given arc given circle given polygon given radius given square given triangle half the number hyperbola hypothenuse hypothesis infinite inscribed and circumscribed inscribed double triangle inscribed polygon inscribed square James Gregory less limit mathematical mean proportional method multiplied number of sides parabola perimeter perpendicular Plate polygon of double problem PROPOSITION quadrature quantity radius rectangle contained regular polygon result already established right angle right line right-angled triangle Scholium secant sine solution square described square root square the circle straight line Substituting the numbers subtracted tangent theorem trigonometry true circumference true ratio truth unity variable
Popular passages
Page 43 - It furnishes art with all her materials, and without it judgment itself can at best but " steal wisely : " for art is only like a prudent steward that lives on managing the riches of nature.' Whatever praises may be given to works of judgment, there is not even a single beauty in them to which the invention...
Page 64 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 72 - AXIOMS. 1. Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal.
Page 43 - Nor is it a wonder if he has ever been acknowledged the greatest of poets, who most excelled in that which is the very foundation of poetry. It is the invention that in different degrees...
Page 73 - If a straight line meets two straight lines, so as to " make the two interior angles on the same side of it taken " together less than two right angles...
Page 43 - And perhaps the reason why common critics are inclined to prefer a judicious and methodical genius to a great and fruitful one, is, because they find it easier for themselves to pursue their observations through an uniform and bounded walk of art, than to comprehend the vast and various extent of nature.
Page 42 - The star that bids the shepherd fold, Now the top of heaven doth hold ; And the gilded car of day His glowing axle doth allay In the steep Atlantic stream, And the slope sun his upward beam Shoots against the dusky pole, Pacing toward the other goal Of his chamber in the east.
Page 74 - In any right-angled triangle, the square which is described on the side subtending the right angle is equal to the sum of the squares described on the sides which contain the right angle.
Page 67 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Page 64 - A rhomboid, is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles.