Curba lantisor CONCATENARY

[PAULPOPESCU]

CUNOASTETI VREUN SOFT, CEL MAI INDICAT UN LISP CARE SA REPREZINTE IN AUTOCAD CURBA LANTISOR (catenary) PRINTR-UN NUMAR MINIM DE PUNCTE (X,Y,H) NECESAR PE CARE SA LE FOLOSEASCA?

Modificat de PAULPOPESCU (29-06-2013 23:27:32)

[adrianc]

Ce e aia curba concatenary?
Concatenate stiu ca e o chestie care se aplica la variabile de tip string (numar, text).

[John Doe]

...si care ar fi numarul minim necesar de puncte? Geometric vorbind, un arc de cerc de exemplu e definit prin minim 3 puncte, la asta te referi?

[advex]

Te referi la ecuatia y = (e^x + e^-x ) / 2 ?!?
In engleza poarta denumirea de "catenary"...

Informatii utile si un program lisp la http://www.digitalcad.com/2001/05_may/features/math1.htm" target="_blank">http://www.digitalcad.com/2001/05_may/f ... /math1.htm
sau
http://www.jtbworld.com/Catenary_for_AutoCAD.htm" target="_blank">http://www.jtbworld.com/Catenary_for_AutoCAD.htm



Vezi grafic la http://www.graphsketch.com" target="_blank">http://www.graphsketch.com

http://www.graphsketch.com/render.php?eqn1_color=1&eqn1_eqn=(e%5Ex%20%2B%20e%5E-x%20)%20%2F%202&eqn2_color=2&eqn2_eqn=&eqn3_color=3&eqn3_eqn=&eqn4_color=4&eqn4_eqn=&eqn5_color=5&eqn5_eqn=&eqn6_color=6&eqn6_eqn=&x_min=-17&x_max=17&y_min=-10.5&y_max=10.5&x_tick=1&y_tick=1&x_label_freq=5&y_label_freq=5&do_grid=0&do_grid=1&bold_labeled_lines=0&bold_labeled_lines=1&line_width=4&image_w=850&image_h=525" alt="" align="top" border="0">

Modificat de advex (14-11-2012 11:04:18)