@ecterrab Thanks for the reply. Interesting I didn't realize there was a singular solution y(x)=0 to the original ODE. So the initial condition ODE is not well defined.

I saw the problem when i was searching for maple's slope field command. Notice that they didn't use any special command to find the general solution. That's why I got curious. Did Maple change their dsolve?

http://www.dartmouth.edu/~math3f98/csc_archive/CSC2part1/CSC216.html

This link as well

http://www.dartmouth.edu/~math3f98/csc_archive/CSC2part1/CSC217.html

Also that fraction in your worksheet seems strange.

"64399999998466401481/4000000000000000000 "

It evaluates correctly when I use evalf, just seems a bit out of place to use so many digits for a fraction.

@vv Thanks, I will try the combine option. Maple has so many layers of options.

@rlopez I see. I will try that, thanks :D

@pagan Alternatively the command interface(rtablesize=infinity) always displays the rtable.

Thankyou :)
Will this code work too? It's a bit shorter.

orthocenter2.mw

Update

Nevermind my program throws an error with

orthocenter(-3,3,1,3,-3,0) 

Your program works. So it looks like we can't condense it this way. Thanks again

@vv Hi. I am new to maple, and i saw that animation. Can I see the code to that. It looks very interesting.

Nice 3d graphs. How did you use "trunc(x) =z"   in the graph?

@acer I am curious about the parametric part in your command,

In general, how do we know to treat such a problem as parametric, or when should it be used.

If we had three equations in three unknowns, would it be no longer parametric?

@acer That seems work. Thanks. 

@tomleslie "Simply not getting what your problem is"

Did you not see my error above? 

I downloaded your worksheet , got the same error when i clicked on the !!! execute icon.

I downloaded the help file from scratch, just to make sure . 

Still get same error. 

I also updated maple 2016 to the latest update. Maybe its unique to my computer and this particular installation. I'm not sure.

When I copy paste the last line in 1d math notation it is missing a space. 

@tomleslie Maple 2016

@Alger  I get an empty output when i enter this command or code.

@Rouben Rostamian  

Thanks for the reply. I am curious about this command " int~ ". I can't find any documentation for it. If I use int(a,t) it says "Error, (in int) wrong number (or type) of arguments: wrong type of integrand passed to indefinite integration."  So I surmise that int~(a,t)  can be used for vector integration. Also i noticed you didnt use any packages.

@rlopez Thanks for the reply. That's an interesting workaround.

As an aside, I was under the impression that maple experts use Maple notation exclusively, or 1d math notation ( with 2d math display output), and frown upon Math mode (that is the 2d notation).

The maple online guides or manuals tend to be written it in maple notation.

@Kitonum 

Can you explain the logic behind that. Does that mean int is a function that we have to unapply?

For example, a one variable int(x^2,x) = x^3/3 is not a function, but an expression.

But maybe the vector int(<4*t, sin(t),cos(2*t)>, t) is a function of t?

hmm, i have the same problem with one variable

unapply does the trick here as well.

So my question boils down to, why isn't  " v := x->% " equivalent to "v:=unapply(%,x)"