Constructive geometry of plane curves |
Inni boken
Resultat 1-5 av 63
Side xii
... lines • 49 . • To describe a parabola to touch two given lines at given points 50. To ... line 79 81 82 · 88 84 55 . To describe a parabola to pass through a given ... joining their centres 91 CHAPTER IV . THE ELLIPSE . 60. To describe an ...
... lines • 49 . • To describe a parabola to touch two given lines at given points 50. To ... line 79 81 82 · 88 84 55 . To describe a parabola to pass through a given ... joining their centres 91 CHAPTER IV . THE ELLIPSE . 60. To describe an ...
Side 7
Thomas Henry Eagles. draw a second line parallel to NO meeting the given lines ... join CN , draw PM through M parallel to CD and meeting CN in P , and through ... lines AB , CD , i.e. to find a line of length ( 1 ) such that AB : CD , or that ...
Thomas Henry Eagles. draw a second line parallel to NO meeting the given lines ... join CN , draw PM through M parallel to CD and meeting CN in P , and through ... lines AB , CD , i.e. to find a line of length ( 1 ) such that AB : CD , or that ...
Side 8
... line , on it describe a semicircle . Draw the radius KL perpendi- cular to ... line medially , or in extreme and mean proportion , i.e. to find a point ( F ) in ... Join BD and on it from D cut off E Fig.6 . F B DE = DA ; from B on BA cut ...
... line , on it describe a semicircle . Draw the radius KL perpendi- cular to ... line medially , or in extreme and mean proportion , i.e. to find a point ( F ) in ... Join BD and on it from D cut off E Fig.6 . F B DE = DA ; from B on BA cut ...
Side 13
... line of length l such that AB : AD :: the difference between AB and l : the difference between AD and 1 . Set off ... join AE , DE . Through B draw FBG parallel to DE meeting AE in F and make BG = INTRODUCTORY . 13 To find the harmonic mean ...
... line of length l such that AB : AD :: the difference between AB and l : the difference between AD and 1 . Set off ... join AE , DE . Through B draw FBG parallel to DE meeting AE in F and make BG = INTRODUCTORY . 13 To find the harmonic mean ...
Side 14
... Join EG cutting AD in C and AC will be the required harmonic mean . For by ... Join FB and produce it to G making_BG = BF . Join AF and GC producing them to meet in E ... line as ABCD in fig . 9 fulfil the condition AB AD : BC : CD , they ...
... Join EG cutting AD in C and AC will be the required harmonic mean . For by ... Join FB and produce it to G making_BG = BF . Join AF and GC producing them to meet in E ... line as ABCD in fig . 9 fulfil the condition AB AD : BC : CD , they ...
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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 |
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 centre point chord of contact circle centre circles touching cone conic conic section conjugate diameters conjugate points construction corresponding curve being given cutting cutting CB describe a circle describe an ellipse describe an hyperbola determined draw a parabola ellipse equal fixed point foci focus F given circle given Fig given lines given point given tangent harmonic mean homographic involution latus rectum length line joining locus major axis mean proportional meet the directrix opposite sides ordinate pass pencil perpendicular point of contact point of intersection polar pole PROBLEM Prop radical axis radius reduces to Prob right angle second focus segment shew shewn similar triangles Similarly tangent PT three given vertex vertices
Populære avsnitt
Side 11 - ... the first is to the third as the difference between the first and second is to the difference between the second and third, the quantities a, b, c, are said to be in harmonical proportion.
Side 26 - 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 358 - TRIGONOMETRY. By Rev. JB LOCK, MA, Senior Fellow, Assistant Tutor and Lecturer in Mathematics, of Gonville -and Caius College, Cambridge ; late Assistant-Master at Eton. Globe 8vo.
Side 358 - AND BESSEL'S FUNCTIONS. Crown 8vo. WILSON (JM)— ELEMENTARY GEOMETRY. Books I. to V. Containing the Subjects of Euclid's first Six Books. Following the Syllabus of the Geometrical Association. By JM WILSON, MA, Head Master of Clifton College. New Edition. Extra fcap. 8vo. 4?.
Side 287 - AB describe a segment of a circle containing an angle equal to the given angle, (in.
Side 125 - The problem therefore is reduced to finding the centre of a circle to touch externally two given circles (DG, EG) and pass through a given point (Q), which is always possible since the circles must cut each other and Q lie outside both, ie the problem reduces to Prob. 32. [Draw a common tangent EDM to the two circles meeting fP in M.
Side 358 - SOLID GEOMETRY AND CONIC SECTIONS. With Appendices on Transversals and Harmonic Division. For the Use of Schools. By JM WILSON, MA New Edition. Extra fcap. 8vo. 3-r. 6d. WILSON— GRADUATED EXERCISES IN PLANE TRIGONOMETRY.
Side xi - Upon a given straight line to describe a segment of a circle, which shall contain an angle equal to a given rectilineal angle.
Side 30 - 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 97 - 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.