Ho, I try series taylor of tanh, but I want that result is in function of tanh(sqrt(q)*z/y) and not exponential e.

f1 := taylor(tanh(sqrt(q)*z/y+x*m/y), m, 2)

f1 := ((exp(sqrt(q)*z/y))^2-1)/((exp(sqrt(q)*z/y))^2+1)+4*(exp(sqrt(q)*z/y))^2*x*m/(((exp(sqrt(q)*z/y))^2+1)^2*y)+O(m^2)

That is, it should look like:

tanh(sqrt(q)*z/y+.....+tanh^2(tanh(sqrt(q)*z/y)m

Regards.

Hello, I'd like to generate some data from an audio file, like get the amplitude and the time, so that I can plot it with x = time and y = amplitude, do you know how to do that ?

restart:
tf:=2:
n:=2:
X[1]:=t->t^2:
A[1]:=diff(X[1](t),t,t):
plot(A[1](t),t=0..tf,labels=["Time t","n times derivative of X[1](t)"]);

I have a code like above. I run it. Then,

in the labels; it was written "n times derivative of X[1](t)"] why not "2 times derivative of X[1](t)"]) ? and why was not the subscript appeared ? I mean that I want to see X₁ instead of  X[1]?

Help me please.

Thank you.

Hi Maple Community,

I just got my Maple licence and currently I'm going thorugh some basic tutorials in which I've encountered a problem I can't seem to fix:

I'm trying to use the 'LinearSolve' solver as it is shown in the examples on the Maplesoft.com support page:

But I can't seem to get Maple to display a result like it is shown in the picture above.

Instead Maple displays this:

I would be very grateful if someone could tell me what I'm doing wrong.

regards, Alex

Hi, I´m try take out common factor with "collect"

collect(-(1/4)*G*r^2/eta-(1/4)*G*(ri^2-ro^2)*ln(r)/(eta*(ln(ri)-ln(ro)))-(1/4)*G*(ln(ri)*ro^2-ri^2*ln(ro))/(eta*(ln(ri)-ln(ro))), -(1/4)*G/eta)

  But this does not work well.

Regards.

I want to use the solutuion of a DE as a function, including the possibility to plot it.

I have found out that the following comands work, but I cannot undesrtand why. Is there a simpler way?

Truly, Roberto R. Baldino

sol := dsolve({eq, icon}, i(t));
i := unapply(eval(i(t), sol), t);
plot(i(t), t = 0 .. 20, view = [-1 .. 20, -3 .. 3], gridlines);

If not define a procedure

just pass day(hello(a,b), c)

as parameter how to get hello , this function name and day this function name

Hello everybody,

i'm searching for a data-structure similar to the C++ std::unordered_map, so that the access time is konstant O(1) and no matter about the order. What access time does a table() in Maple have, it seems to be not O(1).

If algebra use factorise method,

Which method do maple use to dsolve differential equation?

I am trying to perform the following integral:

Which spits the integral back out at me.

I've also tried

Which, again, spits the integral back out at me.

My last attempt was this

Which... Still spit back out the integral.

Is there something special I should be doing for functions I'm integrating with a natural log? I need to get an exact value for this, not an approximation (because I am trying to check the accuracy of an approximation with this!).

Thanks!

Hi

How call each column of matrix by loop?

Hello there, my first time posting in this forum and using Maple, so sorry if I make some mistakes.

I'm trying to read a wav audio file, but there's this weird error that I can't understand : 

with(AudioTools);

[Audio, Clip, Convolution, Create, Duration, Extract, FormatFromName, Formats, Modulate, Normalize, Play, Preview, Read, Record, Resample, Scale, ToMono, ToStereo, Write]


audio := Read("C:\\Users\\Simon\\Desktop\\Test\\440.wav");

Error, (in readbytes) WAVE Error: unexpected end of file

Do you know what it can mean ? I'm sure it's a wave file, so I don't really get it

hi,

i'am beginers in  the maple programmation, i want to solve the einstien equation in the spherical coordinate,

Dear All,

I am working on ODEs and have obtained the plot for "variable vs time". I would like to know if it is possible and how to analyze those data in the frequency domain.ODEs.mw

Thank you.

Very kind wishes,

Wang Zhe

When Maple 2017?. Are there anybody about the new features of this version?. I,m waiting for a special project.