Maple 13 Questions and Posts

These are Posts and Questions associated with the product, Maple 13

Assume that f:=(s+2)^2*(s-3). How do we get the order of the two factors reversed?
In other words, how do we get g:=(s-3)*(s+2)^2 by manipulating f? As usually,
I don't have f fixed. It is a product of two algebraic factors generated within the Maple program.
Thank you!

mapleatha

I occasionally need single left quotes placed around the value of number.
Let's say x=3. Is there a command on x that will make x=`3`?
Thank you!

mapleatha

Why is this happening?

Thank you!
mapleatha

I have this situation:

We have sol[1] = "A=1", etc. How do I pick up just the solution values 1, 2 and 3 from sol? This is a generated system in a larger program, so I don't have access to the individual numbers coming out of a single step.
Thanks!
mapleatha

In the partial fraction decomposition Maple often changes the order of the terms.
For example,

How do we remedy this?
Thank you!

mapleatha

Why is Maple 13 giving me

instead of (s-3)/((s-3)^2+4)?

Thank you!
mapleatha

I really need to factor minus one from -x-yI. I can do -[x+yI] and -{x+yI}. I cannot do -(x+yI).
Well, i really don't have these numbers exactly. They are produced within a Maple program.
I have something like ab, where a is the number x+yI. The little trick -`a`b will not work because
of the rather involved form of "a".
Thank you!

mapleatha

 

 

How do we print the determinant as a matrix with vertical bars instead of brackets?
Thanks!

mapleatha

When I put "print(A=B=C);" in Maple 13 I get the error:

Error, `=` unexpected

about the second equality sign. How do I remedy that?
Thanks!

mapleatha

 

I input print(lambda*I) and I get I*lambda (Greek lambda symbol); Why is the order reversed?
Maple 13 (GUI) is doing it.
Thanks!

mapleatha

The expression exp(2*t) gives us the number e^(2t). Can we get rid of the parentheses around 2t?
Thank you!

mapleatha

 

 I wand to plot the following expression involving an imaginary number. Can I get some help??

 

((1/10)*exp((2/135)*sqrt(-11)*sqrt(225)*t-(2/3*I)*x+1/15)/((3/10)*exp((2/135)*sqrt(-11)*sqrt(225)*t-(2/3*I)*x+1/5)

 

 


 

`` 

``

sol1 := dsolve([diff(diff(diff(f(eta), eta), eta), eta)+f(eta)*(diff(diff(f(eta), eta), eta))-(diff(f(eta), eta))^2 = 0, diff(diff(diff(g(eta), eta), eta), eta)+f(eta)*(diff(diff(g(eta), eta), eta))+2*g(eta)*(diff(diff(f(eta), eta), eta))-3*(diff(g(eta), eta))*(diff(f(eta), eta)) = 0, (diff(diff(g(eta), eta), eta))*(diff(diff(g(eta), eta), eta))-g(eta)*(diff(diff(diff(g(eta), eta), eta), eta))*f(0) = 1, (D(f))(0) = 1, (D(f))(5) = 0, g(0) = 1, (D(g))(0) = -1, (D(g))(5) = 0], numeric, method = bvp); plots[odeplot](sol1, color = red)

Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system

 

 

``

``


 In this link i attache the code , which is working on this Download Three_euqtions.mw and i got an error which is i couldnot understand. So, kindly can you help on this ??

Hi MaplePrimes,

another_recursive_sequence.mw

another_recursive_sequence.pdf

These two files have the same content.  One is a .pdf and the other is a Maple Worksheet.  I explore integer sequences of the form - 

a(r) = c*a(r-1)+d*a(r-2) with a(1) and a(2) given.

Some of these sequences are in (the Online Encyclopedia of Integer Sequences) OEIS.org and some are not.  If we restrict c to 1 and assume that a(1)=1 and a(2) = 2 we have the parameter d remaining.  See additional webpage - 

https://sites.google.com/site/recrusivefunction/

Let me know if you like the code.

Regards,

Matt

 

What method is implemented in the procedure int with option numeric? Does the method depend on the integrand? Where can I find this information? 

1 2 3 4 5 6 7 Last Page 1 of 43