I am trying to solve the function

f :=  sqrt(1-x²)
L := int(sqrt(1+(diff(f(x), x))²), x = 0 .. 5)

Maple is returning an answer with Pi:  (1/2)*Pi+I*ln(5+2*sqrt(6))

How do I convert this into a numerical format?  

Dear Friends
Is there a way to solve a complicated integration in less possible time?

Thanks

_________________________________________________________________________________
 

restart;
Digits := 100:
tm := time():
with(LinearAlgebra):

m := 6:
a := 0.1:
b := 10*a:
E := 1:
h := 1:
nu := 0.3:

w := (r-b)^2*(r-a)^2*add(add(W[n, i]*r^n*t^(i-n), n = 0 .. i), i = 0 .. m):
ur := -z*(diff(w, r)):
ut := -z*(diff(w, t))/r:
er := diff(ur, r)+(1/2)*(diff(w, r))^2:
et := ur/r+(diff(ut, t))/r+(diff(w, t))^2/(2*r^2):
grt := diff(ut, r)-ut/r+(diff(ur, t))/r+(diff(diff(w, t), r))/r:
u := -(1/2)*E*(2*er*et*nu+er^2+et^2)/(nu^2-1)+(1/2)*E*grt^2/(2*(1+nu)):

PI := int(int(int(u*r, z = -(1/2)*h .. (1/2)*h), t = 0 .. 2*Pi), r = a .. b)-0.5*P*(int(int(r*(diff(w, r))^2, r = a .. b), t = 0 .. 2*Pi)):

Time = time()-tm;

I am looking for a window bat file to run my maple input file.mw

How can I find all roots of sin(sqrt(x)) as the search interval is not constant and depens on x for this function?

Is there a 3D globe available for Maple?  Specifically, a globe depicting the Earth's continents and oceans, that can be grabbed and rotated with the mouse like any other 3D Maple plot?

I can't believe I've just spent a half hour trying to do the simplest thing:

The second example is copied straight out of Tutorial 2.  I'm doing just what the tutorial says: right-click, Solve, Solve for Variable.  I've tried disabling everything in my startup profile, recalculating, restarting, etc.  Why in the world can't I do this simple thing?

Solve_for_variable.mw

Is it possible that the two-variable arctan function arctan(a(x),b(x)) could be could be equal to arctan(a(x)/b(x)) as long as x>0? And why?

arctan(a(x),b(x))=arctan(a(x)/b(x) as long as x>0 ?

Thank's for any replies :)

Hi,

Please I would like to find out if it is possible to plot from a matrix, for example

1) Plot the first and second rows of a matrix, where y-axis is the first row and x-axis is the second row

2) Plot a 3-D diagram using,e.g., first, second and third rows from a matrix. Or

3) Plot the first row of the matrix on the y-axis and then let the x-axis be a time period (e.g. quarters 1, 2, 3, 4).

I attached my Maple file which is solved using FSOLVE. I would like to (i) plot variable A and parameter T  And (ii) plot variables A and F against parameter T in a 3-D form. 

Your help is highly appreciated.

Regards,

Mela

Since thinking over my question I have actually answered it!  ...so I'd just appreciate some comments regards some finer points.  I was initially trying to print out a complex number, and I see in Maple Primes that Joe Riel answered a similar question in Dec 2011  viz

printf"%5.3Z\n",5+3I);  outputs

5.000+ 3.000I

    The documentation in Maple 7 did not give any examples of printing a complex number, and it talked of using z or Z together with a 'c'.  Initially I thought the c was a reference to complex numbers - but after trial and error I finall figured it stood for character.   In the code below I have reinstated the c between the  z and f.  I wanted the output withour the c, and finally removed it - but leaving one space.  (More than one space returns a syntax error.)   My next question was how to find the real and imaginary parts - which I've answered in the code.

    I'm just wondering if the f in zcf is superfluous?  Also, the documentation in Maple 7 seems to make out there are differences between upper and lower case z?  Any comments gratefully received

David

 zz:=eval(Zeta(2.5+3*I));

#zz:=eval(2.5+3*I);

a:=Re(zz);

b:=Im(zz);

printf("%zcf   %6.5f  %6.5f\n",zz, a, b);

Does anyone know how to calculate basic reproduction number using maple coding? Or by any chance, anyone know how to solve it by hand with this complicated equations?
 

Download Equation_for_basic_reproduction_number.mwEquation_for_basic_reproduction_number.mw

Dear all,
Greetings!
I have made a code that solves a nonlinear system of equations by using Newton's Method. I am facing a problem in printing the Jacobian at each iteration. It only prints its lable not the Jacobian matrix itself. Please help me in this regard.
 

Download q1nwtnnonlinearsys.mw

the print output is too ugly, any help in making it more elegant would also be appreciated .

Am trying to integrat f(x)=x^3/2 from 1-2 but can't seem to set it up properly.  

Hello to everyone. Thanks in advance for everyone's answers. I'm new to Maple. Enter key does not react. Any ideas?

Creat a procedure that descritises a given expression of f(x) or function f of one variable over a closed interval range [a,b] using N€ N points.
The output of the procedure should be a list containing the ordered pairs of points in the discretisation.
Add an argument to the procedure to allow for the optional display of the 2d plot of the specified domain comparing the original expression or function and its descritised  form with the points connected by straight lines. These should be displayed on the same plot.

I am trying to make a contour plot of the function f(x,y):=exp(-(x²+y²)/3)cos(2xy)