Basically without directly giving you an answer to copy from

for two equations use the template

solve({eq1,eq2},{x,y});

Just extrapolate to 3 equations. 

Okay thanks.  Changing the value of Digits fixes it. 

I forgot Digits has an effect on internally stored values carried over in calculations.

Works fine when you substitute e with exp   f(x):=20 x*exp(-x)-1

plot(20*x*exp(-x)-1,x=0..15);

Sorry, I forgot a bracket before the x exponent

E := proc(c,d)
plot({(c+(d-c)*j/10)^x-x-1 $ j=0..10}, x=0..(d-c)/1000,xtickmarks=0);
end;

Maple can't graph it when the procedure is at the 6th decimal point as I've mentioned above.

 It's a problem right out of  Engineering Explorations with MAPLE by Robin Carr and Murat Tanyel from Drexel University 1994.
Procedure from page 38 of the book.

Actually yes there is some "wiggling" in the classic version as well, it's just not as pronounced.

Why are the location of the points in the frame, as Scott says, not the same.  They should be, shouldn't they?  If in the future maplesoft were to implement a graph trace feature, would it use the points on the graph or use internally calculated points, in any case I don't know why the points would shift.  Is it possible the internal routine used to produce the animation causes this line motion effect as it is drawn?

How about sum? 

sum(a[(i*2)-1],i=1..4);

                                                     a₁+a₃+a₅+a₇

You might want to start a new thread on this as this matter deviates from the original title. 

I haven't used TI interactive but I do have a TI-89.  Maple has more options, it's versatile and more powerful. 

As a side note if the teacher has recommended the TI interactive software then you'll follow along a lot better since he's probably devoted his course to that particular software and not Maple, you may be playing a lot of "catch up" trying to figure out how to get maple to do what he's doing with TI interactive. 

Thanks!  Yes I know about the e being exp I just used e for simplicity.

And if I had 4 paramaters, I'd encapsulate the seq by another seq

cvalues:=[100,200,300,400];

dvalues:=[2,4,8];

plot([seq(seq(900*d+c*exp(t/5),c=cvalues),d=dvalues)],t=0..5);

was getting some strange errors with the labelling and it wasn't plotting so I just left the labelling part out. 

expand(c) seems to work

This is good news indeed.  Maplesoft has a lot going for it, I would hope it would not change that much.  I suppose it's not like when Autodesk took over Maya and changed a lot of things, that wasn't good for them in the beginning but I think they've ironed things out. 

It's sounding like Maplesoft's takeover is a lot like what's happened to our company.   We were just bought out by a very large American company, shareholder vote pending and most likely, but it is a holding company and has left the day to day operations of the company up to original management teams, a key to continued success of any company really.

Pressing ALT and the number combination 0176 on the keypad will work to get the degree symbol.  Using the numbers across the top won't work must use the keypad on the right. 

Cheers

Might I suggest a good 3rd party open source (free) program called Hotkeybind, it can be found here http://hotkeybind.sourceforge.net/index.html 

The only thing I don't like about it is you can't hotkey the cursor keys for shortcuts such as getting out of the exponent.  If anyone knows of a hotkey program that can hotkey cursors I would be interested in knowing. 

No, it doesn't work the way I want. 

I want the program to display the time[real] at that moment at every interval.  Sort of a realtime event.  I don't want it to print everything at the end when the loop is finished.  Essentially I want maple to tell me, by displaying, a marker (the time[real]() every 10 minutes) or user specified time or even have maple beep a signal 5 times at the specified intervals. 

Since the kernel has to continuously run it will most likely, as I mentioned at the beginning, have to be run on a separate worksheet.

Can maple display results from inside the loop while the loop is still running?

Yeah, I'm finding out using this sort of loop uses quite a bit of system resources. 

I found time[real] under time.  Can be found on the online help here http://www.maplesoft.com/support/help/view.aspx?path=time 

Thanks for your little program.  I'll give it a try when I get home tonight.

while time[real]()<290 do
    a:=trunc(time[real]())    #had to set this to a variable since mod won't take the expanded version
    if mod(a,50)=0 then print(time[real]()) end if
end do

It didn't quite work.  It flashes a bunch of times.  Then prints everything out in the end.   time[real]() before I started was 270.   It printed a lot of 278 to 289's.