Constructive Geometry of Plane Curves: With Numerous ExamplesMacmillan and Company, 1885 - 374 sider |
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Side vi
... taken . I cannot however here omit to notice my indebtedness to Dr Salmon's classical work on Conic Sections , or to Chasles ' Géométrie Supérieure for the chapter on Anhar- monic Ratio and the Anharmonic Properties of Conics . Chap ...
... taken . I cannot however here omit to notice my indebtedness to Dr Salmon's classical work on Conic Sections , or to Chasles ' Géométrie Supérieure for the chapter on Anhar- monic Ratio and the Anharmonic Properties of Conics . Chap ...
Side 1
... taken to adjust the legs so that the lower portions of both may be perpendicular to the paper . This is a sine quâ non for good work and it is of course impossible with the ordinary single jointed instruments . In addition to the above ...
... taken to adjust the legs so that the lower portions of both may be perpendicular to the paper . This is a sine quâ non for good work and it is of course impossible with the ordinary single jointed instruments . In addition to the above ...
Side 2
... taken that the line passes accurately through both points , as owing to the thickness of the edge of the square it is quite possible to make a slight but quite appreciable error . This is particularly the case if the pencil is cut to a ...
... taken that the line passes accurately through both points , as owing to the thickness of the edge of the square it is quite possible to make a slight but quite appreciable error . This is particularly the case if the pencil is cut to a ...
Side 3
... taken by a light handling of the instruments , not to damage the paper , until it is found that it can be marked with the points in the right places , and when a point is being marked on a line with the dividers , special care should be ...
... taken by a light handling of the instruments , not to damage the paper , until it is found that it can be marked with the points in the right places , and when a point is being marked on a line with the dividers , special care should be ...
Side 11
... taken in order are equal . PROBLEM 10. To determine graphically the square root of any number ( n ) , i.e. to determine a line the length of which length of a line containing n units measured on any scale :: 1 : √n . This is sometimes ...
... taken in order are equal . PROBLEM 10. To determine graphically the square root of any number ( n ) , i.e. to determine a line the length of which length of a line containing n units measured on any scale :: 1 : √n . This is sometimes ...
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Constructive Geometry of Plane Curves: With Numerous Examples Thomas Henry Eagles Uten tilgangsbegrensning - 1885 |
Constructive Geometry of Plane Curves: With Numerous Examples Thomas Henry Eagles Uten tilgangsbegrensning - 1885 |
Vanlige uttrykk og setninger
AC² anharmonic ratio asymptotes auxiliary circle bisects the angle CA² CB² centre point chord of contact circle centre circles touching cone conic conic section conjugate diameters conjugate points constant construction corresponding curvature curve being given cutting cutting CB describe a circle describe an ellipse describe an hyperbola determined directrix draw a parabola drawn equal F draw foci focus F given circle given Fig given lines given point given tangent harmonic harmonic mean homographic involution latus rectum length line joining locus major axis mean proportional opposite sides ordinate parallel pass pencil perpendicular point of contact polar pole PROBLEM Prop radical axis radius right angle second focus segments shew shewn similar triangles Similarly tangent PT three points transverse vertex vertices
Populære avsnitt
Side 28 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 28 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Side 303 - AB describe a segment of a circle containing an angle equal to the given angle, (in.
Side 32 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Side 99 - A conic section is the locus of a point which moves so that its distance from a fixed point, called the focus, is in a constant ratio to its distance from a fixed straight line, called the directrix.
Side 13 - Three lines are in harmonical proportion, when the first is to the third, as the difference between the first and second, is to the difference between the second and third ; and the second is called a harmonic mean between the first and third. The expression 'harmonical proportion...
Side 40 - Upon a given straight line to describe a segment of a circle which shall contain a given angle. Let AB be the given straight line.