Dear Maple Users,

I'm beginner in Maple.

I have this system of Pde:

with lambda experimental parameter and n,c,v dependent variables. I write this on Maple but I read on internet that the solution "float(undefined)" is an error.

I will insert this initial condition: c(x,0)=0,n(x,0)=0.4

Thanks everybody

Hallo guys,

I am newbie in Mapple, i could not solve the problem yet, here is my little function. I want to estimate beta with the Maximum Likelihood Estimation with Weibull:

> MaximumLikelihoodEstimate(Weibull(beta, eta), F1); F1 := Vector([1500, 1750, 2250, 4000, 4300, 5000, 7000]);print(`output redirected...`); # input placeholder[beta = HFloat(HFloat(undefined)), eta = HFloat(HFloat(undefined))

]

May someone help me why i just get HFloat(undefined) ?

Kind regards

Just came across this

Press esc twice then enter. Maple becomes unresponsive.

Hi, again:

Is there a way to connect Maple with Sqlite?

Thanks in advance

C.L.

I am dealing with second order linear differeantial equations for RLC and forced RLC circiuts.

I am having trouble with plotting a solution curve in the phase plane.

> restart;

with(plots); with(DEtools);

L := 10; R := 20; C := 1/100;

de1 := diff(x(t), t) = y(t);

de2 := L*(diff(y(t), t))+R*y(t)+x(t)/C = 0;

DEplot({de1, de2}, [x(t), y(t)], t = 0 .. 5, [[x(0) = 10, y(0) = 0]], stepsize = 0.5,

Hy, I am trying to design a game with maple. For that I simulated the 6 rolls with the random function. Now I'd like to display them on 6 different buttons. I desgined the buttons, but I can only manage to get a fixed expression on them (like "dice"), but no variable. My idea is to take the element of a list (6 rolls in one list) and display it on the button. Can anybody help me please? Thanx!

How do I find all words beginning with "FL" and ending in "S" ?

Hey,

i got some linear optimization problem which i solved via maximize from the simplex library and i'd like to know if there's some way to generate only the final simplex tableau.

DOES ANYONES HAS THE SLIGHTEST IDEA OF HOW I COULD MODEL AND SUMILATE THE WAVE PATTERN OF A REGISTERED EARTHQUAKE??? FOR INSTANCE I AM STUDYING THE EARTHQUAKE EFFECTS OF THE NOVEMBER QUAKE IN GUATEMALA OF LAST YEAR. I WOULD LIKE TO MODEL THE MOVEMENT OF THAT QUAKE OVER A GIVEN AREA NEAR THE EPICENTER.

ANY HINTS OF HOW I COULD EVEN START TO MAKE THE MODEL AND SIMULATE??

Hello,

This method works in 2d... but in 3d I get a HFloat undefined output when I try and substitute the actual values in to the function. If anyone could have look through the programming and see why this is, it would be really helpful!

Thanks,

Rach:)

The_Whole_Program_I.mw

I've downloaded and installed Maple, but I can't activate it. Whevener I try and activate it from within the program, it freezes, and when I click Activate Maple on the Start screen nothing happens. I tried the offline activation service, copied the licence.dat file into the Maple license folder, but when I tried to open Maple it still said license file missing or invalid.

I'm using a license provided by my university, and I'm running Windows 8.

1. I use your previous reply on V_G derive on other characteristic function, but most are undefined

or complicated solution or can not evaluate, why?

for example

charc := 1+i*X/(i*X-1);int(exp(-I*X*u)*charc, X = -infinity .. infinity);

it got this complicated thingpiecewise(Im(1/i) = 0, undefined, int(exp(-I*X*u)*(1+i*X/(i*X-1)), X = -infinity .. infinity, method = _UNEVAL))Density := int(exp(-I*X*u)*charc, X = -infinity .. infinity);

Hi, sometimes when i multiply matrix, some of the values turn out to be "Float(undefined)". How do I set all of these "Float(undefined)" to the value zero? Please help. Thanks

Hello. The ‘optimization’ flag for the fortran codegen or CodeGeneration only will operate on a single array. It would be very very helpful to me if I could put multiple arrays (all of them having common variables) as input that the codgen and CodeGeneration can automate all at once (im mostly interested in the fortran and matlab codes). What I do now as a work around is manually put all the multiple arrays into one giant array, then run code...

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