MaplePrimes - Questions and Posts tagged with function
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en-us2016 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemThu, 08 Dec 2016 20:09:34 GMTThu, 08 Dec 2016 20:09:34 GMTThe most recent questions and posts on MaplePrimes tagged with functionhttp://www.mapleprimes.com/images/mapleprimeswhite.jpgMaplePrimes - Questions and Posts tagged with function
http://www.mapleprimes.com/tags/function
how to find roots of equation J
http://www.mapleprimes.com/questions/220023-How-To-Find-Roots-Of-Equation-J?ref=Feed:MaplePrimes:Tagged With function
<p>how to find roots of equation J0(xR) = 0 ,R is constant, using maple? I know command for zeros of Bessel function i.e J0(x) = 0. but what to do with different argument?</p>
<p>how to find roots of equation J0(xR) = 0 ,R is constant, using maple? I know command for zeros of Bessel function i.e J0(x) = 0. but what to do with different argument?</p>
220023Thu, 17 Nov 2016 04:07:56 ZraaziaraaziaHow I can plot the following function?
http://www.mapleprimes.com/questions/219779-How-I-Can-Plot-The-Following-Function?ref=Feed:MaplePrimes:Tagged With function
<p>O(t) = 9.2-[(8.93*35.3)/(11.17-8.93)]*(exp(-8.93*t)-exp(-11.17*t))-8.3*exp(-11.17*t)</p>
<p>t betwen 0 and 1</p>
<p>O(t) = 9.2-[(8.93*35.3)/(11.17-8.93)]*(exp(-8.93*t)-exp(-11.17*t))-8.3*exp(-11.17*t)</p>
<p>t betwen 0 and 1</p>
219779Fri, 04 Nov 2016 15:41:09 Zcesarbioqcesarbioqhow to solve functional equation in maple
http://www.mapleprimes.com/questions/219422-How-To-Solve-Functional-Equation-In-Maple?ref=Feed:MaplePrimes:Tagged With function
<pre class="prettyprint">
<span style="font-size:10px;">ha := (diff(c(t), t))/(c(t)*(diff(c(t), t))-c(t));
solve(subs(m=ha,f(m))*subs(m=subs(c(t)=a(t),ha)), f(m)) = subs(m=ha+subs(c(t)=a(t),ha), f(m), f);</span></pre>
<p>just expect to find a function ?<br>
</p>
<pre class="prettyprint">
<span style="font-size:10px;">ha := (diff(c(t), t))/(c(t)*(diff(c(t), t))-c(t));
solve(subs(m=ha,f(m))*subs(m=subs(c(t)=a(t),ha)), f(m)) = subs(m=ha+subs(c(t)=a(t),ha), f(m), f);</span></pre>
<p>just expect to find a function ?<br>
</p>
219422Sat, 22 Oct 2016 11:38:29 Zasa12asa12minimizing an objective function coefficients and the variable to be optimized are in matrix form with equality constraint
http://www.mapleprimes.com/questions/218838-Minimizing-An-Objective-Function-Coefficients?ref=Feed:MaplePrimes:Tagged With function
<div>I have to find an optimal matrix V such as the objective function was minimized. I was tryed two function (Minimise and NLPSolve) and both of them doesn't work.</div>
<div>I have this error :</div>
<div>Error, Got internal error in Typesetting:-Parse:-Postprocess : "internal error: invalid object "</div>
<div>such that the objective function have this form:</div>
<div>obj := (V.Hd.transpose(Hd).transpose(V))/(V.Hf.transpose(Hf).transpose(V))</div>
<div>PS: Hd, Hf and V are all a matrix. Here, we want to optimize V.</div>218838Sat, 08 Oct 2016 08:44:09 ZTynaTynacreating functions with derivatives in them. How do I stop "invalid input"?
http://www.mapleprimes.com/questions/217316-Creating-Functions-With-Derivatives?ref=Feed:MaplePrimes:Tagged With function
<p>I wish to define a function which is the derivative of another function.</p>
<p>> f:=(x)->x^2:</p>
<p>> g:=(x)->diff(f(x),x):</p>
<p>> g(x);</p>
<p>2 x</p>
<p>> f(2);</p>
<p>4</p>
<p>> g(2);<br>Error, (in g) invalid input: diff received 2, which is not valid for its 2nd argument</p>
<p> </p>
<p>I cannot find a way in which I can define the function g, using the functional operator, so that I can actually evaluate g(x).</p>
<p> </p>
<p>How can I do this?</p>
<p> </p><p>I wish to define a function which is the derivative of another function.</p>
<p>> f:=(x)->x^2:</p>
<p>> g:=(x)->diff(f(x),x):</p>
<p>> g(x);</p>
<p>2 x</p>
<p>> f(2);</p>
<p>4</p>
<p>> g(2);<br />Error, (in g) invalid input: diff received 2, which is not valid for its 2nd argument</p>
<p> </p>
<p>I cannot find a way in which I can define the function g, using the functional operator, so that I can actually evaluate g(x).</p>
<p> </p>
<p>How can I do this?</p>
<p> </p>217316Fri, 09 Sep 2016 08:25:51 Zrowlesmrrowlesmrhow I do to obtain the Real part and the Imaginary part of a complex function?
http://www.mapleprimes.com/questions/216708-How-I-Do-To-Obtain-The-Real-Part-And?ref=Feed:MaplePrimes:Tagged With function
<p>I have this function:</p>
<p>Z := (cos((1/2)*x)-I*sin((1/2)*x))*A0/r^(1/2)+(cos((1/2)*x)+I*sin((1/2)*x))*r^(1/2)*A1+(cos(3*x*(1/2))+I*sin(3*x*(1/2)))*r^(3/2)*A2;</p>
<p>I wanna to obtain another function Y which equal to</p>
<p>Y:=f1*(Re(Z)+Re(Z'))+f2*(Im(Z)+Im(Z'));</p>
<p>where: f1 and f2 are constant </p>
<p>thanks :)</p><p>I have this function:</p>
<p>Z := (cos((1/2)*x)-I*sin((1/2)*x))*A0/r^(1/2)+(cos((1/2)*x)+I*sin((1/2)*x))*r^(1/2)*A1+(cos(3*x*(1/2))+I*sin(3*x*(1/2)))*r^(3/2)*A2;</p>
<p>I wanna to obtain another function Y which equal to</p>
<p>Y:=f1*(Re(Z)+Re(Z'))+f2*(Im(Z)+Im(Z'));</p>
<p>where: f1 and f2 are constant </p>
<p>thanks :)</p>216708Mon, 29 Aug 2016 19:36:26 Zfatyplusfatyplus