Constructive geometry of plane curves |
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Side ix
... pencil ib . Harmonic properties of a complete quadrilateral 16 13 . Two pairs of conjugate points being given , to find the centre and foci of the involution . 17 14. Through a given point to draw a line meeting two given lines so that ...
... pencil ib . Harmonic properties of a complete quadrilateral 16 13 . Two pairs of conjugate points being given , to find the centre and foci of the involution . 17 14. Through a given point to draw a line meeting two given lines so that ...
Side xvi
... pencil of rays , and three rays of a second pencil corresponding to a given three of the first , to complete the second so that the two shall be homographic 214 218 ib . 123. Given two homographic ranges in the same straight line , to ...
... pencil of rays , and three rays of a second pencil corresponding to a given three of the first , to complete the second so that the two shall be homographic 214 218 ib . 123. Given two homographic ranges in the same straight line , to ...
Side 1
... pencil points , which can be used for both large and small circles if care be 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 ...
... pencil points , which can be used for both large and small circles if care be 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 ...
Side 2
... pencil should first be placed on one of the points , the square can then be brought up to the pencil and worked against it as a centre till it coincides with the other , when the line can be drawn , and care must be taken that the line ...
... pencil should first be placed on one of the points , the square can then be brought up to the pencil and worked against it as a centre till it coincides with the other , when the line can be drawn , and care must be taken that the line ...
Side 3
... pencil ring round it and not by a smudge made with a blunt pointed pencil , which entirely obscures the exact position of the point . PROBLEM 1. ( Figs . 1 , 2. ) To draw a line bisecting the angle between two given lines . It is ...
... pencil ring round it and not by a smudge made with a blunt pointed pencil , which entirely obscures the exact position of the point . PROBLEM 1. ( Figs . 1 , 2. ) To draw a line bisecting the angle between two given lines . It is ...
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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.