Maple 15 Questions and Posts Maple 15 Questions and Posts Feed

These are Posts and Questions associated with the product, Maple 15

> w0 := 2*pi*sqrt(5)*10^9;
> mu0 := 4*pi*10^(-7); pi := 3.14; wepnorm := 4*pi*sqrt(3)*10^9; wmpnorm := 2*pi*sqrt(6)*10^9; wmpz := 4*pi*10^9; w := 10;
> k0 := w0/c; d := 10^(-9);
> enorm := e0*(1-wepnorm^2/w^2); munorm := mu0*(1-wmpnorm^2/w^2); mz := mu0*(1-wmpz^2/w^2); c := 3*10^8; e0 := 8.85*10^(-12);
> t1 := enorm*mz/(e0*mu0)-1; t2 := mz/munorm;
> eq1 := alpha0^2+t2*k1z^2-t1*k0^2;
for alpha0 from 0 to 25 by 5 do



Error, (in plot) found points with fewer or more than 2 components


True Brilliance Teeth Whitening Pen Colgate includes a teeth whitening method named Obvious Bright, that is quick, secure, and effective. This technique can be a take-home equipment that may just be bought during your local office. This Colgate system consists of an especially effective whitening solution and a pair of mouth guards. The mouth guard containers just need to utilized upto half an hour daily, for three straight nights to attain noticeable whiter teeth. The Colgate Obvious Bright method will come in two fantastic flavors and melon, and in addition it comes in a reusable system event that is portable. The price for your method runs between $ 30 50, depending on peroxide it includes, that is the ingredient inside the kit's percentage.


how we can solve an ode with boundaries by using RK4 and any other technique??

how we can solve an ode with exat soltuion n calculate the unknw constant which aries after solving an ode.???



One thing to remember is that a lot of children, even thought have been not born or aware when these attacks happened, are no stranger to your cause and affect we have now using on an authentic bases. When family has ever traveled by airplane they may already be conscious of the extream meassures airports security take to ensure safety. If you are a military family they may all ready be use to frequent hightened security levels on base, bomb sniffing dogs, and limiting non-military personnel on assiette. Military kids may already know of family or friends who were personally involved the intrusions. They may have knowledge of online marketing missions inside of Middle East and why dad recently been sent over there (or soon). Here just what you in a position to educate your children about 9/11.

     Parallel curves on surfaces. The distance between the points of the curves is measured along the curves of intersection of the surface and perpendicular planes.
     (According to tradition, it also does not make sense.)




I'm running into a very simple problem with the way that Maple integrates Heaviside functions. Naively, it should act like a step function, but it is not integrating properly. See the attached document.

int(int(Heaviside(-x^2-y^2+1), x = -1 .. 1), y = -1 .. 1)



evalf(Int(Heaviside(-x^2-y^2+1), [x = -1 .. 1, y = -1 .. 1]))



int(piecewise(-x^2-y^2+1 > 0, 1, 0), [x = -1 .. 1, y = -1 .. 1])




Note that the symbolic integration of the Heaviside function (defined to be 1 inside the unit circle and 0 outside) gives zero, whereas it should clearly give the area of the unit circle, which the numerical integration does. I even checked that the (suposedly equivalent) piecewise definition symbolically evaluates to the area, and it, too, gets the right answer.

Anyone have any clue as to why the symbolic integration of this Heaviside function is so wrong? My understanding is that if we do the integral as two nested 1D integrals, the returned function (as a function of y) is zero everywhere except at y=0, but that result cannot be right either.




      General description of the method of solving underdetermined systems of equations. As a particular application of the idea proposed a universal method of calculation for all kinds of linkage (lever) mechanisms. With the description and examples.
      The method can be used for powerful CAD linkages.

Description: Calculation_method_of_linkages.pdf


Or all in one

        Some examples of a much larger number calculated by the proposed method. Examples gathered here not to look for them on the forum and opportunity to demonstrate the method.  Among the examples, I think, there are very complicated.



Round := proc(x,n::integer:=1)
end proc:

roundcoeffs1:=proc(p,x,n:=1) local t,c;
c:=map(Round, [coeffs(p,x,t)],n);
add(i, i = zip(`*`, c, [t]));


roundcoeffs1(ggg, [y^3, c*A*y^3, c*A*y^2, c*y*B, c*A*y, c*B, y^2, y, c*A, c*B*y^3, c*B*y^2], 4);

Error, (in sprintf) number expected for floating point format


theta := Complex(1,1);
Minimize(theta^3-3*(A*theta^2+B), {0 <= theta^3-3*(A*theta^2+B)}, assume = nonnegative)

Error, (in Optimization:-NLPSolve) complex value encountered

from mathematica,


n = 5;
CalabiYau[z_, k1_, k2_] := Module[{z1 = Exp[2Pi I k1/n]Cosh[z]^(2/n), z2 = Exp[2Pi I k2/n]Sinh[z]^(2/n)}, {Re[z1], Re[z2], Cos[alpha]Im[z1] + Sin[alpha]Im[z2]}];
Do[alpha = (0.25 + t)Pi; Show[Graphics3D[Table[ParametricPlot3D[CalabiYau[x + I y, k1, k2], {x, -1, 1}, {y, 0, Pi/2}, DisplayFunction -> Identity, Compiled ->False][[1]], {k1, 0, n - 1}, {k2, 0, n - 1}], PlotRange -> 1.5{{-1, 1}, {-1, 1}, {-1, 1}}, ViewPoint -> {1, 1, 0}]], {t, 0, 1, 0.1}];


n := 5;

z1 := exp(2*3.14*I*k1/n)*cosh(z)^(2/n);
z2 := exp(2*3.14*I*k2/n)*sinh(z)^(2/n);

alpha = (0.25 + t)Pi;

xx := Re(z1);
yy := Re(z2);
uu := cos(alpha)*Im(z1) + sin(alpha)*Im(z2);


where k1, k2, alpha are variables


i find algcurve has implicitize

how to use this implicitize to find 3d surface?

is there any other method to find?


i searched groebner basis can do this, but in mathematica is different from maple example

i got this error in window 8 in surface 2  then follow this post and install again still error

then follow

then follow and install again same error

and install again same eror

then i add option -f c:\Program File (x86)\MapleXX in cmd and then no error any more 

but no install succeed 

where it go, it still not install

then i try again, there is no room enough to install,  hard disk do not have enough space, then i go to c:\Windows\Temp, after deleted file in it, still not enough space


i find

but template do not state how to activate later

how to write this template and how to clear the temp file created by previous failed cmd install method



Let, fixed an integer i and 1<=j<=2^{i}-1, for each x and y in [0,1] let the following mapping

Then, with the above procedure we can obtained, for a fixed i, all the mappings for j=1,...,2^{i}-1


However, How can I to evalute the "components" of the above procedure? For instance, I can not to compute CreaF(2)[1](0.35,0.465) (i.e., the first function in the "vector" CreaF(2), in x=0.35, y=0.465). 


Thanks very much for your time.


1 2 3 4 5 6 7 Last Page 1 of 44