The Quadrature of the Circle: The Square Root of Two, and the Right-angled Triangle |
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Page 35
... secant is to the tangent as the radius is to the sine , therefore the square of the secant is to the square of the tangent as the square of the radius is to the square of the sine . The second class embraces those problems which either ...
... secant is to the tangent as the radius is to the sine , therefore the square of the secant is to the square of the tangent as the square of the radius is to the square of the sine . The second class embraces those problems which either ...
Page 68
... secant of the arc AF , or of the angle ACF Thus The cosine of an arc is the sine of the complement of that arc . the ... secant of the complement of that arc . Thus CL is the secant of the arc DF , or the cosecant of the arc AF . Fig.1 ...
... secant of the arc AF , or of the angle ACF Thus The cosine of an arc is the sine of the complement of that arc . the ... secant of the complement of that arc . Thus CL is the secant of the arc DF , or the cosecant of the arc AF . Fig.1 ...
Page 71
... secant of one of these angles is the cosine , cotangent , and cosecant of the other . The sine , tangent , and secant of an arc are equal to the sine , tan- gent , and secant of its supplement . Thus FG is the sine of the arc AF , or ...
... secant of one of these angles is the cosine , cotangent , and cosecant of the other . The sine , tangent , and secant of an arc are equal to the sine , tan- gent , and secant of its supplement . Thus FG is the sine of the arc AF , or ...
Page 73
... secant is the constantly assumed diameter . 2. The sum of the sines or tangents is the constantly assumed cir- cumference . 3. The sine is a mean proportion between the double of the cosine and the second tangent . 4. The second tangent ...
... secant is the constantly assumed diameter . 2. The sum of the sines or tangents is the constantly assumed cir- cumference . 3. The sine is a mean proportion between the double of the cosine and the second tangent . 4. The second tangent ...
Page 78
... secant be assumed for the true diameter , instead of the double of the cosine , and the sum of the tan- gents be assumed for the true circumference , instead of the sum of the sines , the ratio will be the same as the ratio between the ...
... secant be assumed for the true diameter , instead of the double of the cosine , and the sum of the tan- gents be assumed for the true circumference , instead of the sum of the sines , the ratio will be the same as the ratio between the ...
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.