These are Posts and Questions associated with the product, Maple 16

Hi when i'm trying to solve, i get the following warning: Warning, solutions may have been lost.

The equations i'm trying to solve are the following:

> P := 21000;

> v := 10/(60*1000);

> r := 983;

> Cp := 4181;

> Tl := 40;

> K1 := 124.27;

> K2 := 102.03;

> K3 := 7.23;

> K4 := 2.947;

> eqn1 := P = v*Cp*r*(Tf-Tr);

quandl (http://www.quandl.com/) has a great feature called superset (you need a free acount) where the user can combine different data variables (4 000 000 to choice from) into a big dataset (csv file) that can be downloaded from a permenant web url. This a great data feed for maple. The problem is however that you have to use stringtools (quite messy) in maple to extract the data. Hence, it would be great to have a simple procedure that only needs the web

Why does this not work?restart: with(Statistics): P := Sample(RandomVariable(Normal(10, 10)), 500): X := RandomVariable(EmpiricalDistribution(P)): DensityPlot(X);

If you fill a vector with values then RandomVariable return _R and everything worksbut if you use Sample then RandomVariable returns _R0 and nothing works.This is the kind of thngs that makes working with Maple frustrating because it is not consistentie sometimes procedures are spelled with upper case letters but some times with lower case letters.Some procedures only works on lists but not vectors. In my opinion it would be better to stick to onedata type...

I just started with maple 16 trying to complete an into assinment. I am in a worksheet trying to just enter simple expresions 3+4 or 3*4 ect. Whne i enter the operator + * using the keyboard, ther operators menu or pasting from notepad about 90% of the time the previous number i typed disapears and the worksheet will no longer accept imput

I have tried reinstalling several times with no AV active even installed in safe mode same issue..

Maple...

I'm trying to evaluate this triple integral in the rectangular coordinate system and Maple appears to be stuck after the second iterated integral. I then tried to evaluate the same integral in another computer algebra system and got the answer almost instantaneously. My guess is that system converted it to an integral in the cylindrical coordinate system. Why does Maple not do the same? Is there a way to force Maple to do so without manually doing the conversion? I hope there isn't a typo that I'm missing.

I am looking at various ways to generate surfaces in a cylindrical coordinate system. When using the cylinderplot( ) command, the default color scheme is acceptable. However, when using the implicitplot3d( ) command, the surface comes out very dark. I've played with a few color/lighting options, but I'm still not able to have the implicit3d plot look anything like the cylinder plot. Can someone suggest any color/lighting/shading options that might acheive this. My initial results are attached.

Hi

I have a problem with my three task to do in Maple (ver.16)

1. I have a differential equations:

dy/dt=-y, y(0)=1

How to do it in Maple (using Dsolve command) and how to draw this ?

2. Solve and draw second-order differential equation :

d^{2}y/dt^{2}+y(t)=sin t ; y(0)=0 ; y'(0)=1^{}

3. Solve and draw equation:

Hi experts!

Suppose we want to plot a function depending on integral evaluation, like

> S := Int(sin(sin(x+u)+sin(y-u)),u=0..Pi); /Pi ...

Good afternoon everbody,

I am trying to make a rational interpolation from the data of a function (values of the function for different points). I tried to do it with the RationalInterpolation command but it requires too much time. Then I chose to solve the problem with the NonlinearFit command but the result varies a lot if I a change the basic function I want to approach and I always get a warning message: limiting numer of iterations reached.

Hi.

I want to solve two varibles from a vector crossproduct equation, but receives a failure massage no matter what i do.The equation is the one below and i want to solve for Gx and Gy. Really hope you can help.. THANKS!

with(LinearAlgebra);F1:=<Fr1,-Ft1,-Fa1>;Sug :=<0,0,-Duzg>;Su1:=<Dux1,0,-Duz1>;Mmotor:=<0,0,-Mind>;G:=<Gx,Gy,Gz>;OO:=<0,0,0>; U:=(Su1 &x F1) + (Sug &x G) - Mmotor = OO;...

The sine wave in Maple 16 is shown as following

The sine wave in Mathematica is shown as following

It's obvious that the second one is smoother than the first one,I want to know how to make curves smoother in Maple 16.

Hi,

I have a .txt file created from maple. I want to read some data using maple. The content of that .txt file is

....

some word, -7 -0.25333 10

...

some word,

d^2(x)/d(t^2) + sin(x)=0 (1)

d^2(x)/d(t^2) + x = 0 (2)

d^2(x)/d(t^2) + ( x - (x)^3/6) = 0 (3)

1) Compare the results of numerical simulations of (1), (2), (3) to see how closely the period of the periodic orbits relate.

a) Perform a phase portrait ( (x)'(t) vs. x ) analysis for (1), (2), and (3).

b) Consider the initial conditions x(0)= x_{0} and x'(0)=0. For what intervals of x_{0 }do the periodic orbits of (2...

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