Hello everyone,

I have been trying to use MAPLE 16 for Boolean algebra computations. BooleanSimplify( ) command in Logic-Mathematics is giving me incorrect results, in the following code:

with(Logic):

f:=(not(x1)and not(x2) and not(x3)) or (x1 and x2 and x4);   #Create a 4 variable function f

g:=((x1 and x2) or (x2 and x3)) or (x3 and x4);    #Create another 4 variable function g

f2:=f &or g;

f3:=Canonicalize(f2,{x1,x2,x3,x4},form=DNF...

I have a set which is represented as a list L (in particular in L there are no repeated values!).

I would like to determine for which index j the element op(j,L) realizes the minimum of L. Is there a built-in function to accomplish this task?

More generally, call OL the list L rearranged in increasing order;  is there a way to determine the permutation which transforms the list L in the list OL?

Hi:

For many reasons, until recently, I have been always using Classic interface under Maple through Maple 16. When trying Maple 16 with Java interface I have noticed several quirks which were not present under the Classic interface of earlier versions through (at least) Maple 13. One of them is this:

The shortcut keys such as CTRL+Insert and SHIFT+Insert do not work and I am forced to use a mouse and copy/paste icons in Maple. This really slows down my keyboard...

Hi

I want to solve the equation of

F'''(x)+F(x)*F''(x)=0

with the following  boundary conditions

F(-5)=F'(-5)=0

F'(5)=0.14

for solving it numerically in the computational domain of [-5...5]. I have seprated the domain into two parts and the governing equation and boundary condition in each domain is assumed as follows

g'''(x)+g(x)*g''(x)=0
g(0)=alpha
g(-5)=0
g'(-5)=0

Here is my code:

restart:
with(LinearAlgebra):with(plots):with(ExcelTools):
n:=0.8:    e:=1:   h2:=0.01:
for N from 20 by 10 to 100 do
for b from 0.01 by 0.05 to 0.26 do
for h from 0.02 by 0.02 to 0.2 do
for h1 from 0.015 by 0.015 to 0.105 do
  A1:=proc(N::posint,b1,e1,h0,h11,h21) local M;
      M:=Matrix(N,(i,j)->if i=j then e elif abs(i-j)=1 then h else 0 fi);
      M[1,2...

When using "plotsetup(png,...)" the third rotational angle is ignored.  Attached are a worksheet and the corresponding three plots that demonstrate this bug.

Dear everyone,

  Hello,

  I have a question about how to get the power 'n' in an expression "(x+y)^n". For instance, I have a Maple code

******

eq1:=4*x^n*y^m+(x+y)^n+x^3;

f1:=map(t -> `if`(match(t = c*y^d, y, 's'), subs(s,d), NULL),
      convert(eq1, list));
f2:=map(t -> `if`(match(t = c*x^d, x, 's'), subs(s,d), NULL),
      convert(eq1, list));

It will be possible to manipulate this behavior with options "dsolve / event" or "dsolve / Error Control"?

> restart;
> Digits;                                10
> ode := sin(x(t))*(diff(x(t), t, t))+x(t)^3 = t*sin(x(t));

> ics := x(0) = 0, (D(x))(0) = 0;

> s := 250;

The explosion of cloud this - cloud that, is rather obvious now.

SO, I decided to check-out the cloud feature to my Maple? One problem, I cannot see - what is in it?

• Yes, I understand, you use the cloud palette in Maple.
• It shows the group, who the document / notebook is from, what it's title is? And such.
• _

• BUT, is there a web page - listing? hidden somewhere, on MaplePrimes or someplace on Maplesoft's service? (

Hi Guys,

I was wondering if there is a way to get data from an array solution.

The system of odes, I am trying to solve is 

eq2:= diff(f(eta),`$`(eta,3))+f(eta)*diff(f(eta),`$`(eta,2))+beta*(1-diff(f(eta),eta)^2) = 0;

eq2 := diff(theta(eta),`$`(eta,2))+pr(f(eta)+(beta-1)*

eta*diff(f(eta),eta))*diff(theta(eta),eta) = 0;

bcs:=f(0)=gama,D(f)(0)=lambda,D(f)(N)=1,theta(0)=0,theta(N)=1:

gama:=2;lambda:=1:pr:=10:N:=10:beta:=3:

I would like to draw some areas between curves. I tried to use ?plots/implicitplot but I often need to use gridrefine option which consumes so much memory. When I want to draw e.g. the area between f and g:

f := x-> piecewise(x < 5, 2, x-3):
g := x-> piecewise(x < 4, x, 4):

I can do:

p:=plot({f, g}, color...

I am making a 2D plot and need to mark certain irregular points on the x-axis, so I managed to put tickmarks (and gridlines) at those points, and somehow Maple even labels each tickmark, which is what I want. 

Except, there is no room along the x-axis for all the labels, so I need the labels to appear vertically at each tickmark.

Is  there any way to do this? The only instructions I can find for vertical labelling just apply to axis labels, not tickmark or gridline labels.

Hola,
How can leave a trail/trace of black point in the yellow and purple screens? Something very similar to the option "animate / trace."

SVD-filtering.mw

Make it possible to take the numerical data of each screen from the "plottools [getdata]"

Gracias

seriestoratpoly(series(simplify(LaguerreL(5, x)),x,6),['egf']);

seriestoratpoly(series(simplify(LaguerreL(5, a, x)),x,6),['egf']);

inverse z transform of sqrt(1-a^2)/(1-a/z)

restart;
alpha := 0;
s := x;
tau := alpha + 1 - x;
source := s*Diff(y(x),x$2)+tau*Diff(y(x),x)+n*y(x)=0;
sol := dsolve(source,y(x),method=laplace);
zsol := ztrans(sol,x,z);
convert(zsol, ratpoly);

sol := y(x) = _C1*invlaplace((_s1-1)^n*_s1^(-1-n), _s1, x)
zsol := ztrans(y(x), x, z) = _C1*invlaplace((_s1-1)^n*_s1^(-1-n)*z/(z-1), _s1, x)
Error, (in convert/ratpoly) expecting a Laurent series or a Chebyshev series

what are _C1 and _s1?