515.sagews

\textbf{My First work in sage}\\
Here is a problem related to limit.\\
\newline
\noindent \[ \lim_{x \rightarrow \infty}\frac{2x^3-1}{3x}\]\\
\newline

This is a sample of html form<br/>
<table>
 <tr><td>Name</td><td><input type="text" id="name"/></td></tr>
 <tr><td>Email</td><td><input type="text" id="email"/></tr>
 <tr><td>Gender</td><input type="radio">Male</input><input type="radio">Female</input></tr>
 <tr><input type="submit" value="Submit"/><td><input type="reset" value="Reset"/></td></tr>
</table>

This is a sample of html form
[removed]

Name
[removed]

linspace(0,pi)
x=(0,10);
y=(0,pi);
plot(x,y)
grid on

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/sage/sagenb/sage_notebook/worksheets/hari/3/code/4.py", line 10, in <module> grid on''', '/home/sage/sagenb/sage_notebook/worksheets/hari/3/cells/3') File "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/server/support.py", line 353, in syseval return system.eval(cmd, sage_globals, locals = sage_globals) File "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/expect.py", line 974, in eval return '\n'.join([self._eval_line(L, **kwds) for L in code.split('\n') if L != '']) File "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/expect.py", line 636, in _eval_line self._start() File "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/matlab.py", line 209, in _start Expect._start(self) File "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/expect.py", line 458, in _start self.__name, cmd, self._install_hints()) RuntimeError: Unable to start matlab because the command 'matlab -nodisplay' failed. You must obtain the program MATLAB in order to use MATLAB from SAGE. You can read all about MATLAB at http://www.mathworks.com/ You might have to buy MATLAB or get away with setting up a remote connection to a server running Maple. Type print matlab._install_hints_ssh() for hints on how to do that).

circle((1,0), 0.5, rgbcolor=(1,0,1))

u, v = var('u,v')
fx = (1+cos(v))*cos(u)
fy = (1+cos(v))*sin(u)
fz = -tanh((2/3)*(u-pi))*sin(v)
parametric_plot3d([fx, fy, fz], (u, 0, 2*pi), (v, 0, 2*pi),
   frame=False, color="red")

fx = sin(x)
plot([fx],(x,-5,5),rgbcolor=(1,0,1))