<![CDATA[Outliers in a List in Sequence command]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command
Thu, 25 Feb 2021 17:07:21 +0000Tue, 16 Feb 2021 13:21:09 +0000Zend_Feed<![CDATA[the points (n,0) are initial points for calculating intersections, the intersections can be near or far of this points. if you want to limit the domain of sequence you can use a keepif() commandno possible one name for each object in a sequence]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298580
Tue, 16 Feb 2021 18:02:36 +0000<![CDATA[Dear Mathmagic, Thank you so much for your prompt reply and solutions. I somehow managed to remove the outliers with a number of commands. I would like to know how to use Zip commands instead of Sequence command in this. Can I use shorter steps than I used here. I have made a geogebra applet to find the area above and below xAxis between x=a and x=b. I made an applet for abs(x)-3. I want to move the graph anywhere and my intention is to develop this applet to find the said area for any function.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298644
Wed, 17 Feb 2021 13:44:46 +0000<![CDATA[One proposal: Define g(x)=0 Then: L={Intersect(f,g,-10 π, 10 π)}]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298648
Wed, 17 Feb 2021 13:44:44 +0000<![CDATA[Yo lo haría así]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298680
Wed, 17 Feb 2021 21:28:10 +0000<![CDATA[Dear mathmagic, Thank you so much for your support. Kindly help me to simplify the following applet. I am working on this for two three weeks. Still there are some errors. I wish to use this for any function, even if it is above xAxis. The intended intersections 'c' and 'd' are not getting in the proper way as expected for other functions of different family.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298692
Thu, 18 Feb 2021 04:01:11 +0000<![CDATA[Wherever I move 'a' and 'b', I want to get the area above and below xAxis between x=a and x=b. Kindly make the Applet much simpler so that I can open it in Ubuntu unless there are no limitations there. Otherwise, Applet in geogebra web view is enough.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298704
Thu, 18 Feb 2021 08:52:59 +0000<![CDATA[sorry. I can not to explain in english no creo que sea posible hallar los puntos de corte de cualquier función con el eje x. tú ya sabes cómo calcularlos si están suficientemente distanciados y creo que la mejor manera de obtener resultados sería usar la parte positiva y la negativa de la funcion por separado. Intenta integral((f+abs(f))/2,a,b) para la zona positiva y integral((f-abs(f))/2,a,b) para la zona negativa. lo dificil es obtener el listado de soluciones de f=0 y no creo que sea posible para todos lo casos]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298724
Thu, 18 Feb 2021 10:12:45 +0000<![CDATA[It’s so kind of you. Thank you.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298736
Thu, 18 Feb 2021 11:15:53 +0000<![CDATA[maybe the attached compact example is helpful Note: {Roots()} as robust alternative to intersect Note: Script in A and B snap or fix to pointsA must be <= B (flexibility with pathparameter) Note: pixX = Length of 1 pixel depending zoom (needed in snap) Note: the effect of the 3 boolean Note: The definition variant to split the function into positive and negative]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298772
Thu, 18 Feb 2021 23:31:41 +0000<![CDATA[Sir Rami, Wonderful syntaxes and Algorithm. I am trying hard to get hold of the details in it. Congrats and thanks. Kindly help me to simplify the following applet. Two samples are given viz. sin(x) and abs(x-1)-3. I am working on this for two three weeks. Still there are some errors. I wish to use this for any function, even if it is above xAxis. The intended intersections 'alpha' (or 'c') and 'beta' (or 'd') are not getting in the proper way as expected for other functions of different family. Wherever I move 'a' and 'b', I want to get the area above and below xAxis between some x=a and x=b, not necessarily quadrantal angles. Kindly make the Applet flexible with your GeoGebra comments and algorithm.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298776
Fri, 19 Feb 2021 02:08:17 +0000<![CDATA[With the exception of the sliders you will find everything (and more) you need in my example (and in the descriptions and samples of Mathmagic). You "only" have to understand and implement it. If you have problems understanding: 1. study the commands in the manual and 2. ask (concretely and specifically)]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298778
Fri, 19 Feb 2021 03:01:39 +0000<![CDATA[When the function f(x) is changing, the integral F(x) becomes undefined. That's one concern.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298782
Fri, 19 Feb 2021 06:16:48 +0000<![CDATA[for what (new) value in object f object F become undefined.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298784
Fri, 19 Feb 2021 06:43:52 +0000<![CDATA[When f(x) = sin(x) changes to f(x) = sin(x)+0.2, the integral F(x)=integral(f,x) or integral(f) should have to change to cos(x)+0.2x. However, when I change f(x), F(x) becomes ?/undefined and when I go to Algebra part and refresh F(x), it becomes fine in Graphics2. Is this a bug in GeoGebra. Without refreshing in Algebra view, will the integral F(x) not be changed in its own. That's why I have made Inputbox4 for F(x) in Graphics view to manually give the comment there. But that too shows error while trying to input in Inputbox4 of Graphics2. I just want to find the local integral between a and b in the neighbourhood of alpha<=x<=beta. That is why I have made inequalities that are 5!/2! permutations of a, b, alpha, beta and (alpha+beta)/2. Are there Geogebra comments to generalize this with the movements of a, b, alpha and beta?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298786
Fri, 19 Feb 2021 07:12:57 +0000<![CDATA[For any change in f(x), F(x) becomes undefined here in Geogebra web.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298788
Fri, 19 Feb 2021 07:16:14 +0000<![CDATA[In my environment (windows 10, chrome, ggb5.0.627, classic) I cannot reproduce the problem. Which ggb version do you have, which app (e.g. classic or geometry or ....) and in which environment (e.g. windows 10, chrome)?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298796
Fri, 19 Feb 2021 07:28:30 +0000<![CDATA[I am using the same windows 10 ggb classic web version 6.0.625.0-w(19 Jan 2021) in chrome.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298804
Fri, 19 Feb 2021 07:34:51 +0000<![CDATA[I have made inequalities that are 5!/2! permutations of a, b, alpha, beta and (alpha+beta)/2 and followed my logical arguments and permutations with a, b alpha and beta. Are there Geogebra comments to generalize this with the movements of a, b, alpha and beta? Waiting for your Algorithm.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298806
Fri, 19 Feb 2021 07:39:41 +0000<![CDATA[Back to your answer to my question: OK: update to 6.0.627 and test (the case sin(x)+0.2) again. And please not more then one question in the same time.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298808
Fri, 19 Feb 2021 07:52:42 +0000<![CDATA[LOL... Thanks for your support. How can I update web version? Should I download the latest version]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298816
Fri, 19 Feb 2021 08:22:33 +0000<![CDATA[Download ggb version 6 is here download ggb version 5 is here BUT!!! for windows no version 6.0.625 or 6.0.627 exists (only in ggb version 5) That's why I think you are using ggb version 5 (and not ggb version 6) If my guess is correct: download and install (from here msi-Version)]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298820
Fri, 19 Feb 2021 08:57:37 +0000<![CDATA[Strange!!! I test with this link here 6.0.625 exist and is the last version and here I can reproduce the undefined F. I think this is a Bug. go to version ggb 5 (local, no web, some things change) or wait until the bug is repaired.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298822
Fri, 19 Feb 2021 09:18:27 +0000<![CDATA[Thank you sir. I am downloading, and will find a solution for my first problem.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298826
Fri, 19 Feb 2021 09:56:14 +0000<![CDATA[Sir Rami, You are correct. The GGB version 6.0.620.0-offline (01 December 2020) works without error. Getting F(x) in the right way. I thing now my Applet works perfect. What do you think!! Will you give a solution for my second problem, a fine tuned ggb algorithm for the permutation part I did in my ggb Applet!!]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298828
Fri, 19 Feb 2021 10:29:42 +0000<![CDATA[Sorry sir. I was in some work so that I didn’t notice the movement of A and B in your applet. Your applet is perfect. Now I got opportunity to think differently with the freedom of your syntaxes used in ggb. Thanks a lot.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298858
Fri, 19 Feb 2021 15:12:32 +0000<![CDATA[Will you explain Li2?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298862
Fri, 19 Feb 2021 15:18:31 +0000<![CDATA[range is 10pi Extremum(f, -range, range) --> create a lot of points but there are needed as list, so you must write in {..} {Extremum(f, -range, range)} --> but the y value of all this points must be 0 Zip((x(P), 0), P, {Extremum(f, -range, range)}) --> Each element of the above list is given the local name "P" (the name P is valid only within the Zip() command). With each P the first parameter of Zip is executed and create the point (x(P),0). The sum of all executed expressions of the first parameter forms the new list. Join({<list1>,....<listn>}) --> makes a single list out of many lists (connect the lists to one list) Join({<list1>, If(!<condition>,{},<list2>)}) --> list2 is appended to list1 if the condition is true. If the condition is not true, an empty list (nothing) is appended to list1. Li2 = Join({Li1, If(¬extremum, {}, Zip((x(P), 0), P, {Extremum(f, -range, range)}) )}) --> all extrema of the function are appended to Li1 if the condition extremum is true. The extrema are marked as points on the x-axis.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298866
Fri, 19 Feb 2021 16:54:19 +0000<![CDATA[Como siempre RAMI hace el mejor applet para mostrar lo que ocurre en las situaciones a estudiar, pero...... sigo apuntando que creo que no hay proceso que cubra todas las necesidades de cualquier función salvo analizar cada pixel para averiguar que es lo que ve el usuario, aunque también puede ser un efecto del zoom ]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298878
Fri, 19 Feb 2021 20:48:43 +0000<![CDATA[I see on your picture that the intersection point of the function with the x-axis is not present in the area ca x=28. In addition, B is not snapped exactly to the intersection point at approx x=22. The missing point should have been created with Roots(). I can not reproduce this error with the file 03b (but also 03) (ggb5.0.627 windows10).Maybe we do not use the same file or a different environment. Regardless, however, I agree in principle with your statement above. ]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298882
Fri, 19 Feb 2021 21:22:22 +0000<![CDATA[Sir Rami, I am studying your algorithm. I think I have to think and know a lot about the functions of each and every command you have used in here. Is Li2 gives the empty list for points out of Extremum points +-10pi? Why A and B do not move out of 10pi in this applet to see that empty list?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298904
Sat, 20 Feb 2021 03:22:42 +0000<![CDATA[I want to know about the pixel thing and zoom effect both of your were discussing? What does pixX do? What are corners 1, 2 and 5. What is the function of the ratio pixX?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298906
Sat, 20 Feb 2021 03:29:54 +0000<![CDATA[quote: "Is Li2 gives the empty list for points out of Extremum points +-10pi?" I am not sure what you mean exactly: Li2 never has extremum-points outside range (because {Extremum(f, -range, range)}) has a range) Li2 always has the points of Li1 Li2 has no extrema if !extremum or no extrema are found within the range Li2 can be empty if no points in Li1 and if the above condition is true --------------------- quote: "Why A and B do not move out of 10pi in this applet to see that empty list?" This is completely independent of the points in Li2. See the definition of A and B. It is a point that lies on a segment (defined with range) (and it can never leave this segment) ---------------------- quote: "I want to know about the pixel thing" Motivation: To snap a Point (in onUpdate-script of A and B) a certain distance must be undershot. The problem is that when the image is zoomed the distance on the screen also increases. However, the distance for triggering the snap should always be the same on the screen. Therefore, the distance should not be a ggb unit but a unit in (ggb) screen pixels. Number of pixels in a windows: this number can be queried with the command Corner(5) (see also manual). The result is a point with x and y number of ggb-pixels. This number does not change as long as the dimension of the window does not change. The number does also not change even if the image is zoomed. Corner(n) (n=1 to 4) (see manual) give the ggb-Coordinates of the 4 Corners of the windows Distance(Corner(1),Corner(2)) give the horizontal length in ggb-Units of the windows. Question: how long (in ggb-Units) is 1 ggb-pixel horizontal (please try to answer with the commands above: pixX=?????, and look not in the program because there is something else I want to explain afterwards)]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298910
Sat, 20 Feb 2021 05:28:08 +0000<![CDATA[hey rami el error se produce cuando cambias varias veces el valor +1. Por ejemplo poniendo +2,+3,+4,+1 etc cuando la longitud de la lista de soluciones disminuye y luego aumenta parece que GG desprecia alguna de las soluciones y le cuesta trabajo aumentar el numero de ellas hasta completar todas las que hay en la nueva situacion espero se me entienda]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298924
Sat, 20 Feb 2021 10:36:14 +0000<![CDATA[Sir Rami, How do you made the check boxes rootFix, extremum and recalc? What comment/function is appended to each of them? Is there any keyboard shortcut for the Boolean "not" other than !, to use in !extremum in Li2? Is this the same given in checkbox 'extremum'?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298960
Sun, 21 Feb 2021 06:24:45 +0000<![CDATA[quote: "How do you made the check boxes rootFix, extremum and recalc?" quote: "What comment/function is appended to each of them? (bolean)" This is the wrong question. A good question would be: where are these Boolean used. extremum is used in Li2rootfix is used in the script onUpdate A and Brecalc is used in p and n quote: "bolean 'not" " you can use ! or ¬ (the moste keyboards has "!" so use this) ------------------------------ All three questions are actually unnecessary. I think you should concentrate on each object (in the order of the algebra view) until you really understand it. For this it makes sense to make your own experiments/tests in a separate applet.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-298998
Sun, 21 Feb 2021 12:07:07 +0000<![CDATA[OK, I see it. thanks]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299014
Sun, 21 Feb 2021 13:18:15 +0000<![CDATA[I couldn’t understand the use of the Boolean rootFix in your program!! What is the relevance of the Boolean rootFix in your program? I find no change with or without rootFix. Where is the Boolean rootFix used? Kindly see the attachment in which I have just copied your work.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299022
Sun, 21 Feb 2021 20:08:57 +0000<![CDATA[What does mathmagic mean by the occurrence of error when changing +1 multiple times? Do you mean when you make changes in function cos (x/2).4 +1?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299032
Sun, 21 Feb 2021 20:16:02 +0000<![CDATA[You have not considered the script in A and B. (select A, Properties, Script, OnUpdate)]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299034
Sun, 21 Feb 2021 20:22:57 +0000<![CDATA[What do you mean by Scripts in A and B? I am new to that concept. Kindly explain. When I reproduced your applet, I am getting Integral(f,B,A) also. I think, you have restricted this property by scripting, haven’t you? Which page I have to refer to understand the scripting you have mentioned here. https://wiki.geogebra.org/e... https://wiki.geogebra.org/e...]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299078
Mon, 22 Feb 2021 04:31:21 +0000<![CDATA[quote: Kindly explain........... The best way to understand scripts is to study examples and do your own experiments. You can find examples here. I recommend the book by Chris Cambre Scripts are an add on to the command of an Object. A script is executed when an event occurs. GGB knows 2 events: Click on a certain object and "the object is updated". In both cases the script is stored at the object in Properties/Script (please have a look at these properties in my program for A and B.). It's time to look at all properties anyway, it's important). The scripts I created make sure that when you move A or B, the point on Li2 (magnetic) snaps or can only be moved on the points of Li2 (not in between). Just now I realize that the second line in the script is not necessary (but does not hurt). In other words: line 1 in the script is nice to have, line 2 is not necessary. --------------------------- quote: "When I reproduced your applet, I am getting Integral(f,B,A) also. I think, you have restricted this property by scripting, haven’t you?" no there ar no scripts. But in my Programm i write: p = Integral(If(f(x) ≥ 0, f(x), 0), x(A), x(B), recalc) (and not Integral(f,B,A)) If recalc == false then ggb draw the Integral but not calculate the value. In this case the Performance is better. This you can find in the desciption of Integral() (I hope you has found this command in the manual und you have read it) ================================================================ In the meantime, I think that the task you have set yourself is too large. I think it is better if you first work through the basics in some tutorials. Then you can go back to this task.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299098
Mon, 22 Feb 2021 07:36:34 +0000<![CDATA[yes]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299116
Mon, 22 Feb 2021 10:01:48 +0000<![CDATA[Where will I get tutorials? Can you suggest some sites or books? I need more examples to practice.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299126
Mon, 22 Feb 2021 11:42:09 +0000<![CDATA[Dear Rami, Kindly check the attached ggb file in which the first list/sequence I1 of integrals, I am getting {(?, -5)} up to {(?, -10.21)} respectively when x(A) = -8.81 approx. and x(B) = -5 respectively up to x(A) = -8.81 approx. and x(B) = -3.65. Why is this so? I wanted to get the list of integrals between roots of f within x = x(A) and x = x(B). How can I get a single element/integral in the list when the integral is between A and B when length(segment(A,B)) < distance between two adjacent roots of f?]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299474
Thu, 25 Feb 2021 15:38:15 +0000<![CDATA[The same issue continue in all intervals, ‘A’ being fixed at a root and ‘B less than or equal to the adjacent root.]]>
https://help.geogebra.org/topic/outliers-in-a-list-in-sequence-command#comment-299494
Thu, 25 Feb 2021 17:16:02 +0000