 | 1897 - 528 páginas
...diagonal PO of this parallelogram will be the direction of the motion of the generating point at P, and consequently the tangent to the curve at this...that in the ellipse the tangent bisects the angle BPN, formed by one of the focal distances and the production of the other, ' ' etc. , etc. Mr. Heather... | |
 | Charles William MacCord - 1901 - 144 páginas
...motion of the generating point at P, and consequently the tangent to the curve at this ,17 FIG. 13. point. It is clearly seen from this, that in the ellipse, the tangent bisects the angle BPN formed by one of the focal distances and the production of the other," etc., etc. Mr. Heather elsewhere... | |
 | Charles William MacCord - 1901 - 148 páginas
...motion of the generating point at P, and consequently the tangent to the curve at this .V FIG. 13. point. It is clearly seen from this, that in the ellipse, the tangent bisects the angle BPN formed by one of the focal distances and the production of the other," etc., etc. Mr. Heather elsewhere... | |
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FIG. 13. point. It is clearly seen from this, that in the ellipse, the tangent bisects the angle BPN formed by one of the focal distances and the production of the other," etc., etc. Mr. Heather elsewhere explicitly states that if the components in two... 