Items tagged with syntax

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Hi,

Is there any syntax highlighting for the "code edit region"?

 

thanks.

I have some numerical data, which are very accurate (500 digits) and want to copy them on a text file.

For pratical reason I would like the procedure writefile to write just 20 digits figures: which is the right syntax to use?

Hi,

As a piece of work, I am required to define a function, and plot it in 3d.

The problem is regarding the 'gamma' function. We have to define it as:

myGamma:= x->int(exp(-t)*t^(x-1),t=0..infinity);


Then a later part of the questions asks you to define phi as the following function:

HI,

 

at first I have to admit, that I'm totaly new to maple and have only few experience with the programm.

 

That's the problem. I've got an old maple-code which I want to rewrite in the 2d-Math-syntax. In the code there are a lot of variables of the type "numerical integer" with a form like

"rho_a"

"N_A"

....

--> with index in the name

It's a code for a physical-/chemical- process so the...

I have 91 points and to take the sum of the y-coordinates, I do

sum('points[k,2]','k'=1..91);

 

But if I want to take the sum of the points on just the even indeces i.e k=2, 4, 6, 8, 10...etc, I try to do

sum('points[2k,2]','2k'=1..91)     

but Maple gives me an error. I'm doing something wrong here. Help me please me fix the syntax error!!

Hi all,

I am now helping with the first year maple session in my university. Recently, some of the student are learning both 1-d and 2-d input.

Now we have something like this:

 

Is this some sort of bug?

I know it has something to do with the 1-d or 2-d or math input, but in short, that's what happens.

Thanks!

dsolve event handling looks like a great tool, but I can't understand how it works and it's not sufficiently popular to google my way to examples online. There are two things I'd like to do: 1) interrupt the computation once some variable leaves a certain range, 2) interrupt the computation if the solver gets stuck into an infinite loop. Both are documented in the help, but I don't understand it. Suggestions welcome, thanks!

http://www.maplesoft.com/support/help/Maple/view...

I'm new to Maple and find some aspects of the syntax and UI confusing.  The manual isn't much help.  In the case of "e"...

1) If I type in:    evalf(e^1,10) by just typing the letter e from the keyboard, I get back the letter e.  But if I go into the palette and select the expression e^a, and put it in evalf that way (for a=1) I get back a numerical value for e.  I can see that one of these e's is italicized and one isn't...???

Hi,

I'm trying to solve a nonlinear diff. equation numerically using (dsolve) but it gives me an

Error, (in dsolve/numeric/bvp) initial Newton iteration is not converging
my code is:
ode:= diff(f(x),x,x,x)+f(x)*diff(f(x),x,x)+B(1-(diff(f(x),x))^2=0   # f'''+f*f''+B(1-(f')2)=0
bcs:= f(0)=0,diff(f(x),x)(0)=0,diff(f(x),x)(5)=1                            # f(0)=0, f'(0)=0,f'(5)=1

Why isn't DEplot working when my syntax is correct? The equation will plot in one worksheet but not in another?

I will include the work i did, also near the end of the worksheet, there are word descriptions of the questions i did.

Im stuck on the last 3 questions: question 14, 15 and 16. I cant seem to find the values i need for my Ce^-kx

I tried diff it but my syntax is preventing me from going farther.

 

All help will be appreciated! i will include the original lab for more clarification!

EulerSystem:=proc(f,g,n,h,tinit,xinit,yinit,t,s,y);
local i;
t[0]:=tinit;x[0]:=xinit; y[0]:=yinit; 
for i from 1 to n do 
t[i]:= evalf(tinit+h);
x[i]:= evalf(xinit+h*f(tinit,xinit,yinit));
y[i]:=evalf(yinit+h*g(tinit,xinit,yinit));  od;  end;

 

When i tried to execute maple dispayed "unable to parse" but i can't find out where the syntax error is.  "local" was the word with the red dotted line box around...

the problem is as follows:

if((a>0) and (b>0) then (c:=2*a, d:=3b, e:=9b.....)

elif ((a<0) and (b>0)) then (c:=.., d:=..., e:=....)

elif.....

.....

else c:=..., d:=..., e:=...

end if

 

i know i have the if conditions right, but not sure about sequential conditions..what is the correct syntax for this??

I'm getting errors like parse errors, unterminated if, and invalid sequence (on the :=)...

I have recently upgraded to Maple 14, and I can no longer cut and paste syntax between components when I am editing their properties.  Is this normal, or do I have to adjust a setting?

Thanks,

Phil

This first example command

solve({(x-1)/(2*(x-2)) = 2/(x^2-4)+2*(1/2)}, {x})

will be x=-1.

The second example command

solve({(x-1)/(2*(x-2)) = 2/(x^2-4)+1/2}, {x})

won't give me any answer. I know that there is no solution (in sense x=2 for example) for the second math problem.

How can I tell mapple to show me that x=2 ? (even if it's not inside the definition sum R)

Or, if the simplyfication of the equation would be something like x = x + 2 ...

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