Hey guys,

I have a quick question about solving for variables = infinity.  When I code in

solve(infinity=x,x);

the output returns as blank.  Does anyone know why this is?  When I do

the output returns x=infinity and y=infinity.  But when I do

solve({y=0,x=infinity});

Hi,

I'm trying to solve a system of 3 equations with 3 unknowns using fsolve(). The (very long) equations depend on a parameter d. For some values of d, fsolve finds a solution, for other values of d it doesn't, although I can specify a quite narrow range in which there should be a solution. Is there any way to force fsolve() to try harder? It returns unevaluated after about 5 min and I wouldn't mind if it searched for several hours...

 

Dear all,

A few months ago I posed a question on drying of moist particles. Since then my study continued but has never finished.

In short:

Can someone help me with figuring out what the following error means:

"Error, (in F) final value in for loop must be numeric or character"
 

I've obviously done something wrong but have no clue where to start!!

This comes up when i'm trying to plot a graph using the following code:

Hey Everyone,

I'm a Calculus III student and first let me say i love maple because it really helps to visualize things, however, i'm having trouble plotting an equation.  I'm doing a 2nd degree taylor function for sin(x*y) which is:

z = 1 - (pi/8)(x-1)-(pi/2)(x-1)(y-(pi/2))-(1/2)(y-(pi/2))

And it says that it cannot plot the equation.

 

I've also noticed that the plot of sin(x*y) is different from the plot of sin(x(y)).

 

 

Thanks!

I want to plot a graph of the following sequence

x[n]=p*x[n-1]+q*x[n-2] where x[0]=0 and x[1]=1. Also p & q are independ random variables with values +1 or -1.

This is what i've done so far

restart:
> with(Statistics):
> x[0]:=0: x[1]:= 1:
> for n from 2 to 10 do
> S:=Sample(Bernoulli(0.5),2):
> p:=S[1]: q:=S[2]:
> x[n]:=p*x[k-1]+q*x[k-2]: od;
 

But the output is not tallying up the x[n]'s. Also i just realised my code selects +1 or 0 for p & q......

 

Hey there,

 

the attached worksheet shows you how to master definite integrals using special tools that help you determine the pattern between antiderivatives and the area under a curve.

You can also view the examples done in an interactive video:

(Ctrl+click on link)

Definite Integrals - Video Tutorial

 

Hi everyone!

Say I have a simple expression in command line Maple that would become a float as soon as it is executed, e.g., 2^(.5). Is there any way I can keep this in symbolic representation by somehow suppressing the seemingly-automatic conversion to a full float? What I'm really looking for is something that would allow me to do this:

input: u := 2^(.5): convert(u,rational);

output: 2^(1/2)

Thanks for your time!

Is there any way to show the page limits in my document!?!? simple question

I would really need it!!!

 

Thanks a lot!

Can somebody please help me with this. I cannot figure out how to make this work? I keep getting the following error: Error, (in treach) cannot determine if this expression is true or false: 17

in maple 11, i have two problems with simplification of powers of "negative" variables.

 

problem i: A^(1/2) *A^2 <> A^(-3/2)*A^4

the two following expressions should be equal but differ by a minus sign:

 

f:=proc ()
local s;
s := time();
FileTools[Text][WriteString]('default', "a");
FileTools[Flush]('default');
while time() < s+20 do  end do
end proc;
f();

 

In the codes above, I intended that the string "a" is outputed immediately after the function FileTools[Text][WriteString] is called.  But in execution, the output does not appear until 20 seconds elapse.

How can I force the output appear immediately?

hi im a new user to maple 12 and i am having some trouble evaluating limits.

Hi i'm working on a simulation and have got stuck. The simulation is for cyclists cycling on a circular track. There is a section of track which is treacherous and all cyclists who pass through this point must observe a certain maximum speed until they have cleared this area and can continue round the track as fast as they can although keeping a safe distance behind the cyclist in front. It is assumed for simplicity that cyclists cannot overtake each other. These are my workings so far: >bicycle := (pl,sl,len) -> (pl+sl) mod len: > >vel:= proc(pl,len,vmax) > local n;

For the set of functions
   compiletable - create lookup table
   tablelook - perform table lookup
   insertpattern - append to lookup table

I observe these behaviors:
1. The function tablelook( ) only seems to work when the table has been been intiailized with compiletable( ).
2. The function insertpattern( )  nevers seems to work.