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Hi people, I have two questions and help on any of them would be greatly appreciated. 1. My first question is how would i find the point(s) where the two equations intersect? eg. 4*(x-1)^2+(y-2)^2 = 5; x^2+4*y^2 = 1; 2. My second question is how do i find the turning points of a function? eg. x*cos(x^2)/(1+x^2) Again any help is really appreciated. Thanks in advance.
3 equations are: diff(u_r(r,theta),r)+2/r*u_r(r,theta)+1/r*diff(u_theta(r,theta),theta)+cos(theta)/sin(theta)/r*u_theta(r,theta)=0; -diff(p(r,theta),r)+mu*(diff(u_r(r,theta),r,r)+2/r*diff(u_r(r,theta),r)-2/r^2*u_r(r,theta)+1/r^2*diff(u_r(r,theta),theta,theta)+cos(theta)/sin(theta)/r^2*diff(u_r(r,theta),theta)-2/r^2*diff(u_theta(r,theta),theta)-2*cos(theta)/sin(theta)/r^2*u_theta(r,theta))=0; -1/r*diff(p(r,theta),theta)+mu*(diff(u_theta(r,theta),r,r)+2/r*diff(u_theta(r,theta),r)-1/(r^2*sin(theta)^2)*u_theta(r,theta)+1/r^2*diff(u_theta(r,theta),theta,theta)+cos(theta)/sin(theta)/r^2*diff(u_theta(r,theta),theta)+2/r^2*diff(u_r(r,theta),theta))=0;
I'll start off by saying that I suck at rearranging equations and doing complex maths... which is why I use Maple :) (I've got an old copy of Maple 8, which I use rather infrequently since it's not often I need to calculate complex equations). Right now, I have the equations below: S1 := ((R+(D1*sin(90-x)))^2+(D1*cos(90-x))^2)^(1/2); S2 := ((R-(D2*cos(x)))^2+(D2*sin(x))^2)^(1/2); eqn := (L1/(k*(S1^2)) + L2/(k*(S2^2)))^(1/4) = T; I need to make R the subject of the last equation (R is contained in S1 and S2). To do this I'm assuming that I just need to type "solve (eqn, {R});" to make R the subject but if I do that, I get this:
Hello World! Please help!! Im trying to make my equation solving user friendly and im having real issues getting to grips with the Get/SetProperty commands for my embedded components. Im trying to set a text box(component_name?) so that the value (value??) within it is set as the desired parameter (attribute_name???) which is then substituted into my equations and solved for. Can you send me a simple example or have a look at mine, all the tutorials are too complex and tricky for me to figure out! I've read about DougsDocument tools but will the end user need this installed to use the utility if it's posted on maplenet?
How do I make the evaluation of this Elliptic integral faster? >c12:=2*sqrt(2)*int(sqrt(3*t^2-2*t*(sqrt(2)+2)+2*sqrt(2)+3)*sqrt(3*t^2*(17-12*sqrt(2))+2*t*(29*sqrt(2)-41)-24*sqrt(2)+34),t=0..1): > evalf(c12,32); 1.5710166980738556513064017544723 - -28 0.24579031714044391948173350026764 10 I > Maple generated 152 pages of equations to solve this integral. This is how I generated this integral: http://www.getnet.net/~cherry/derive/circle1.doc I solved the problem using symmetric Elliptic integrals. Maple does not support symmetric Elliptic integrals.
I am brand new to MAPLE. I have a large file full of equations which I want to put into a paper. Is there software, or a facility within MAPLE, to convert all these equations into WORD, or at least to TECH, without typing everything in again? Please respond with any help to Jerry Epstein jepstein@poly.edu
Implement a computer program which, for a given lower triangular matrix A with the diagonal entries different from zero,finds the matrix inverse to A by solving the equations Axj= ej for j=1,...,n by the " forward substitution"
The feature which allows users to copy and paste the equations from Differentiation or Integration Tutor is disabled after i install Maple 10.03 update This feature is useful for lecturers as well as students. I wonder could Maplesoft enable this feature in the coming update. Thank you.
hi, i don't know maple at all and i need to figure out how to solve this sytem of equations that model predator prey systems in maple but i get an error when i modify this code > e1 := diff(x(t),t) = k*x(t) - a*x(t)*y(t); > e2 := diff(y(t),t) = -r*y(t) + b*x(t)*y(t); to fit this equation- dx/dt = 2x(1-x/4) - xy dy/dt = -3y + xy x(0) = 1 y(0) = 1 if anyone has time to tell me what i can do to get the equilibrium points, the solution and the table of values for this system, i would be grateful
Maple 10 (patched to 10.03) is inconsistent with its font choice in Maplet MathMLViewer elements when the fontsize option is set. If you don't set fontsize, then equations are typeset as expected with variables in italic font, just like in an ordinary Maple worksheet. But if you set fontsize to say 18pt, suddenly the variables are typeset in upright font. For instance try the following:
with(Maplets[Elements]):
Eq := [diff(u(x,y),x)= diff(v(x,y),y), diff(u(x,y),y)=-diff(v(x,y),x)];
maplet := Maplet([
   [BoxCell("Fontsize 18:")],
To anyone: Will someone provide maple syntax to plot the following lines f(x), x=a, x=b from x=c..d where f(x) is an explicit function and x=a and x=b are vertical lines and the extend of the graph from x=c to x=d. This should give me the graph of the 3 equations from x=c to x=d. I tried implicitplot, graph it led me nowhere. Many thanks PV

New User...

April 10 2006 oakhill84604 8
How do I use Matrices to solve linear equations?
Hi, i'm new to using maple, and so far been ok solving equations, by figuring out the code forthis has got me stumped and would appreciate any help people can give me. basically i'm trying to find the smallest value of x>0 for which the function f(x)=sinx/x has a minimum and to find the coressponding value of the function. However i keep getting error messages, as my code probably does not make sense. could any one help pls? thanks.
hi, I want to solve linear equations with the assumption that Maple round every step of the evaluation accurate to 2 decimal places. for example: > solve({1.11 x - 2.13 y + 1.14 z = 1.23, 0.32 x + 1.44 y + 3.02 z = 4.10, 1.27 x - 1.14 y + 2.54 z = 5.67}, [x, y, z]) x=19.59 y=7.38 z=-4.24 and not [[x = 19.09759807, y = 7.184806478, z = -4.091838645]] thx for your help
Hello I have tried solving quite simple equations, but maple seems to give me a complex solution or complicated one. Ex.: ode := diff(h(t), t) = -.168*sqrt(h(t)) ics := h(0) = 225 dsolve({ode, ics}) h(t) = RootOf(250*sqrt(_Z)+21*t-250*sqrt(225)) I know it is a correct solution but it seems a bit wrong anyway, with both sqrt(_Z) and Rootof
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