Maple 18 Questions and Posts

These are Posts and Questions associated with the product, Maple 18

Dear Maple useres,

I have a polynomial in the form f(s)/g(s) where f and g are polynomial of order 4 with coefficients in symbolic form. I want to convert it in a form of (s-a)*(s-b)*(s-c)*(s-d)/(s-a1)*(s-b1)*(s-c1)*(s-d1)

When i provide the numic value of  symbolic coefficients, Maple find it easy to factor it in the desired form. Otherwise i get a messy solution in the form of root of... expression. Even with assume command, I see no difference in the result. Is there a way to get the above simple form rather than root of expression?

thanks.

 

Hello,

I used the interface(typesetting = extended) command to change the notation used for time derivative of o variable.

But it doesn't seem to be working well when the variable is in the supercript form (check the last line).

How can I solve this issue?

Mapleprimesquestion.mw

 

What is the meaning of the output of the command Weierstrassform?

E.g. what does mean x0^3 - 7*x0 + 88 +y0^2 ?

Maybe y0^2 = x0^3 + 7*x0 -88?

The graphic below by used maple18

contourplot(-3.392318438*exp(-4.264628895*x)*sin(6.285714286*y), x = -1/2 .. 3/2, y = -1/2 .. 3/2)

Why the graphic below the figure is not integrated, how can develop the graphic

 

 

Hello.

Please help me. I Have to solve some equations with Adomian Decomposition Method in Maple. But i don't know it.

I just know AGM, HPM and Perturbation Method in Maple.

please send me instructions and codes.

I'm sorry, I can't speak English well. I hope you understand what I mean.

thank you

hello , there , i want ask a Question ,

i have a vector result n hier , and there is a long part with ^1/2 (like unter) , which is not defined before , just from compute ,i want to replace this part with A, and have tried to use subs , but it didnt work . 

And i have tried to define it before compute, and then use subs , aber it also didnt work .

so how can i replace or define this part in the result?

thanks

 

I need find CPU time for a set of mathematical calculations,  what is the best method in maple 18?

Hey any one can help? I calculated the characteristical Polynom of my Matrix M:

-(lambda-2)^2*(544-lambda^9-328*lambda^7-16*cos(x-y)+6*cos(x-y)*lambda+6*cos(x+y)*lambda-408*cos(y)*lambda^2-408*cos(x)*lambda^2+540*cos(y)*lambda+540*cos(x)*lambda-28*cos(y)*lambda^4-28*cos(x)*lambda^4+152*cos(y)*lambda^3+152*cos(x)*lambda^3+2*cos(y)*lambda^5+2*cos(x)*lambda^5-256*cos(y)+17232*lambda^2-256*cos(x)-7852*lambda^5+17768*lambda^4+2088*lambda^6+28*lambda^8-16*cos(x+y)-23632*lambda^3-5844*lambda)

now I want to solve the second part of the polynomial with lambda^9 but maple gives me the RootOf-function

_Z^9-28*_Z^8+328*_Z^7-2088*_Z^6+(-2*cos(y)-2*cos(x)+7852)*_Z^5+(28*cos(y)+28*cos(x)-17768)*_Z^4+(-152*cos(y)-152*cos(x)+23632)*_Z^3+(408*cos(y)+408*cos(x)-17232)*_Z^2+(-12*cos(x)*cos(y)-540*cos(y)-540*cos(x)+5844)*_Z+32*cos(x)*cos(y)+256*cos(y)+256*cos(x)-544

How can I simplify this expression to solve over lambda.

purpose is to plot all the eigenvalues.

 

Thank you in advance.

Hello,

Why does the following work as expected...

f__c := proc (x__0, y__0) options operator, arrow; piecewise(x__0^2+y__0^2 <= 1 and (x__0-1)^2+y__0^2 <= 1 and x__0^2+(y__0-1)^2 <= 1 and (x__0-1)^2+(y__0-1)^2 <= 1, 1, not (x__0^2+y__0^2 <= 1 and (x__0-1)^2+y__0^2 <= 1 and x__0^2+(y__0-1)^2 <= 1 and (x__0-1)^2+(y__0-1)^2 <= 1), 0) end proc

But the following does not?

cnd := x__0^2+y__0^2 <= 1 and (x__0-1)^2+y__0^2 <= 1 and x__0^2+(y__0-1)^2 <= 1 and (x__0-1)^2+(y__0-1)^2 <= 1
f__c := proc (x__0, y__0) options operator, arrow; piecewise(cnd, 1, not cnd, 0) end proc

(Sorry about the lack of formatting, the forum insists my Maple syntax is invalid)

The first one produces the expected result, x__0 and y__0 are treated as variables in the condition (i.e. f__c(a, b) returns the same piecewise function with x__0 replaced with a and y__0 replaced with b); the second one does not (i.e. f__c(a, b) returns the piecewise function, still with x__0 and y__0 in the condition, and never gets evaluated).

how can filter data im maple 18 befor used in draw plot? i need simple example


this is plot of f(x)=x(by used maple18) ,how can me change (2.5-, 1.5- ,0.5-) in x-axis to true?

how to download  wkptest from http://cpc.cs.qub.ac.uk/summaries/ADTY_v1_0.html and install on maple?

write a maple script to find whether the given function is one one or onto

given a binary sequence of length n ,how many sequence of length n can be generated such that there are no 2 adjacent 0's.

write a procedure to find the permutation of word LEADING considering {E,I,A} together .

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