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    <title>MaplePrimes - Maple Posts and Questions</title>
    <link>http://www.mapleprimes.com/tags/Maple</link>
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    <copyright>2026 Maplesoft, A Division of Waterloo Maple Inc.</copyright>
    <generator>Maplesoft Document System</generator>
    <lastBuildDate>Tue, 07 Jul 2026 03:07:37 GMT</lastBuildDate>
    <pubDate>Tue, 07 Jul 2026 03:07:37 GMT</pubDate>
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    <itunes:summary />
    <description>Maple Questions and Posts on MaplePrimes</description>
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      <url>http://www.mapleprimes.com/images/mapleprimeswhite.jpg</url>
      <title>MaplePrimes - Maple Posts and Questions</title>
      <link>http://www.mapleprimes.com/tags/Maple</link>
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    <item>
      <title>Exploring the Math Behind the FIFA 2026 Trionda Ball</title>
      <link>http://www.mapleprimes.com/posts/235168-Exploring-The-Math-Behind-The-FIFA-2026?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;Every four years, the world comes together to watch one of the most anticipated sporting events in history: the FIFA World Cup.&lt;/p&gt;

&lt;p&gt;Behind all the anticipation, venue planning, and media fanfare, there are many artists and researchers who devote themselves to designing a new FIFA World Cup ball to be rolled out for the public eye (pun intended).&lt;/p&gt;

&lt;p&gt;This post presents an overview of the geometric ideas behind the design of the FIFA 2026 &amp;quot;Trionda&amp;quot; ball, using Maple to visualize and explore these concepts in depth. The ideas presented here were inspired by this &lt;a href="https://www.scientificamerican.com/article/the-surprising-math-and-physics-behind-the-2026-trionda-world-cup-soccer-ball/"&gt;Scientific American Article&lt;/a&gt;. For more information and facts about the 2026 Trionda ball, as well how the shape of the ball impacts play on the pitch, I suggest you check it out!&lt;/p&gt;

&lt;p&gt;FIFA ball designs are often inspired by one of the 5 Platonic solids. A Platonic solid is a convex polyhedron with each face being the same regular polygon with the same number of faces meeting at each corner.&lt;/p&gt;

&lt;p&gt;This year, the Trionda ball was constructed from the simplest of these shapes, the tetrahedron, consisting of 4 triangles, with 3 faces meeting at each corner. Of the five Platonic solids, this shape has the fewest faces, making it the least sphere-like. Turning such a simple polyhedron into a smooth ball is therefore a surprisingly challenging geometric problem.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&amp;nbsp;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132656.png"&gt;&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;

&lt;p&gt;So how can we turn our pointy tetrahedron into something that rolls? Rather than trying to transform the entire tetrahedron at once, we can start by redesigning a single triangular face. The goal is to create a curved triangle that will fit perfectly with three identical copies of itself while covering the surface of a sphere.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp; &lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132722.png"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132735.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Notice that in the above diagrams, the transformed triangle has the same area as the original triangle. Although the edges have been reshaped, no area is added or removed, only redistributed. Preserving the area ensures that four identical curved panels can still cover the sphere completely without leaving gaps or overlapping.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Now that we know how to change one face of the tetrahedron, we need to perform the same sort of transformation (from a triangle to a curved tile), on the surface of a sphere. To start, we can inscribe the tetrahedron inside the sphere, like this:&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-03_094239.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;From here, we can project the edges of the tetrahedron onto the sphere, creating six great-circle-arcs (also known as geodesics) as shown in the diagram below.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-06-29_161920.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Each region enclosed by these geodesics corresponds to one triangular face of the tetrahedron within the sphere. By transforming each geodesic triangle into a smooth curved tile (using a bit of AI help), we create a tiling of the surface similar to that of the 2026 FIFA World Cup ball!&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/fifa_final_ball_animation.gif"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Because each curved tile maintains the area of the geodesic-generated region, the four panels form a complete tiling of the sphere.&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;I would have liked to find a better function between the points on the sphere that resemble the actual Trionda ball more accurately but didn&amp;#39;t get the chance to dive into that. If you want to take on the challenge and are successful, please reply in the comments.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;To see the Maple Worksheet used to generate these diagrams, check out: &lt;a href="https://maple.cloud/app/4849099601215488/Trionda+Ball?key=4A127666810F4C6ABD82F77AF97F461ED90E5515B3C4482B8FEFC2A26368EADA"&gt;Trionda Ball Worksheet&lt;/a&gt;&lt;/div&gt;
</itunes:summary>
      <description>&lt;p&gt;Every four years, the world comes together to watch one of the most anticipated sporting events in history: the FIFA World Cup.&lt;/p&gt;

&lt;p&gt;Behind all the anticipation, venue planning, and media fanfare, there are many artists and researchers who devote themselves to designing a new FIFA World Cup ball to be rolled out for the public eye (pun intended).&lt;/p&gt;

&lt;p&gt;This post presents an overview of the geometric ideas behind the design of the FIFA 2026 &amp;quot;Trionda&amp;quot; ball, using Maple to visualize and explore these concepts in depth. The ideas presented here were inspired by this &lt;a href="https://www.scientificamerican.com/article/the-surprising-math-and-physics-behind-the-2026-trionda-world-cup-soccer-ball/"&gt;Scientific American Article&lt;/a&gt;. For more information and facts about the 2026 Trionda ball, as well how the shape of the ball impacts play on the pitch, I suggest you check it out!&lt;/p&gt;

&lt;p&gt;FIFA ball designs are often inspired by one of the 5 Platonic solids. A Platonic solid is a convex polyhedron with each face being the same regular polygon with the same number of faces meeting at each corner.&lt;/p&gt;

&lt;p&gt;This year, the Trionda ball was constructed from the simplest of these shapes, the tetrahedron, consisting of 4 triangles, with 3 faces meeting at each corner. Of the five Platonic solids, this shape has the fewest faces, making it the least sphere-like. Turning such a simple polyhedron into a smooth ball is therefore a surprisingly challenging geometric problem.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&amp;nbsp;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132656.png"&gt;&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;

&lt;p&gt;So how can we turn our pointy tetrahedron into something that rolls? Rather than trying to transform the entire tetrahedron at once, we can start by redesigning a single triangular face. The goal is to create a curved triangle that will fit perfectly with three identical copies of itself while covering the surface of a sphere.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp; &lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132722.png"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-02_132735.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Notice that in the above diagrams, the transformed triangle has the same area as the original triangle. Although the edges have been reshaped, no area is added or removed, only redistributed. Preserving the area ensures that four identical curved panels can still cover the sphere completely without leaving gaps or overlapping.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Now that we know how to change one face of the tetrahedron, we need to perform the same sort of transformation (from a triangle to a curved tile), on the surface of a sphere. To start, we can inscribe the tetrahedron inside the sphere, like this:&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-07-03_094239.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;From here, we can project the edges of the tetrahedron onto the sphere, creating six great-circle-arcs (also known as geodesics) as shown in the diagram below.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/Screenshot_2026-06-29_161920.png"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Each region enclosed by these geodesics corresponds to one triangular face of the tetrahedron within the sphere. By transforming each geodesic triangle into a smooth curved tile (using a bit of AI help), we create a tiling of the surface similar to that of the 2026 FIFA World Cup ball!&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&lt;img src="/view.aspx?sf=235168_post/fifa_final_ball_animation.gif"&gt;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;Because each curved tile maintains the area of the geodesic-generated region, the four panels form a complete tiling of the sphere.&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;I would have liked to find a better function between the points on the sphere that resemble the actual Trionda ball more accurately but didn&amp;#39;t get the chance to dive into that. If you want to take on the challenge and are successful, please reply in the comments.&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;&amp;nbsp;&lt;/div&gt;

&lt;div class="pointer-events-none fixed inset-x-0 top-0 z-50 mt-4 flex justify-center select-none not-has-focus-visible:sr-only"&gt;To see the Maple Worksheet used to generate these diagrams, check out: &lt;a href="https://maple.cloud/app/4849099601215488/Trionda+Ball?key=4A127666810F4C6ABD82F77AF97F461ED90E5515B3C4482B8FEFC2A26368EADA"&gt;Trionda Ball Worksheet&lt;/a&gt;&lt;/div&gt;
</description>
      <guid>235168</guid>
      <pubDate>Mon, 06 Jul 2026 19:28:42 Z</pubDate>
    </item>
    <item>
      <title>Formal Power Series</title>
      <link>http://www.mapleprimes.com/questions/243670-Formal-Power-Series?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;I tried to evaluate the function&lt;/p&gt;

&lt;p&gt;convert(BesselJ(nu, x), FormalPowerSeries)&lt;/p&gt;

&lt;p&gt;only to obtain the Error message&lt;/p&gt;

&lt;p&gt;Error, (in convert/FormalPowerSeries) input contains no or more than one variable.&lt;/p&gt;

&lt;p&gt;Seems a rather strange error. I thought it would treat x as a single variable&lt;/p&gt;
</itunes:summary>
      <description>&lt;p&gt;I tried to evaluate the function&lt;/p&gt;

&lt;p&gt;convert(BesselJ(nu, x), FormalPowerSeries)&lt;/p&gt;

&lt;p&gt;only to obtain the Error message&lt;/p&gt;

&lt;p&gt;Error, (in convert/FormalPowerSeries) input contains no or more than one variable.&lt;/p&gt;

&lt;p&gt;Seems a rather strange error. I thought it would treat x as a single variable&lt;/p&gt;
</description>
      <guid>243670</guid>
      <pubDate>Mon, 06 Jul 2026 02:03:26 Z</pubDate>
      <itunes:author>Roy Hughes</itunes:author>
      <author>Roy Hughes</author>
    </item>
    <item>
      <title>Maple Support Updates</title>
      <link>http://www.mapleprimes.com/questions/243669-Maple-Support-Updates?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;&lt;a href="/maplesoftblog/234338-Maple-2026-Is-Here#comment206652"&gt;@aroche&lt;/a&gt;&amp;nbsp;&lt;/p&gt;

&lt;p&gt;Is there a Maple Support Update package for Maple 2025 ? If so, how do I download it?&lt;/p&gt;

&lt;p&gt;Thanks, Roy&lt;/p&gt;
</itunes:summary>
      <description>&lt;p&gt;&lt;a href="/maplesoftblog/234338-Maple-2026-Is-Here#comment206652"&gt;@aroche&lt;/a&gt;&amp;nbsp;&lt;/p&gt;

&lt;p&gt;Is there a Maple Support Update package for Maple 2025 ? If so, how do I download it?&lt;/p&gt;

&lt;p&gt;Thanks, Roy&lt;/p&gt;
</description>
      <guid>243669</guid>
      <pubDate>Mon, 06 Jul 2026 01:51:17 Z</pubDate>
      <itunes:author>Roy Hughes</itunes:author>
      <author>Roy Hughes</author>
    </item>
    <item>
      <title>How do I make a single line list?</title>
      <link>http://www.mapleprimes.com/questions/243668-How-Do-I-Make-A-Single-Line-List?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;Hi Maple community, and all,&lt;/p&gt;

&lt;p&gt;Have a small ask, regarding prime numbers.&lt;/p&gt;

&lt;p&gt;see attached&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243668_question/vertical_list_of_prime_numbers.mw"&gt;vertical_list_of_prime_numbers.mw&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243668_question/vertical_list_of_prime_numbers.pdf"&gt;vertical_list_of_prime_numbers.pdf&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Thanks in advance.&lt;/p&gt;

&lt;p&gt;Regards,&lt;/p&gt;

&lt;p&gt;Matt&lt;/p&gt;
</itunes:summary>
      <description>&lt;p&gt;Hi Maple community, and all,&lt;/p&gt;

&lt;p&gt;Have a small ask, regarding prime numbers.&lt;/p&gt;

&lt;p&gt;see attached&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243668_question/vertical_list_of_prime_numbers.mw"&gt;vertical_list_of_prime_numbers.mw&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243668_question/vertical_list_of_prime_numbers.pdf"&gt;vertical_list_of_prime_numbers.pdf&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Thanks in advance.&lt;/p&gt;

&lt;p&gt;Regards,&lt;/p&gt;

&lt;p&gt;Matt&lt;/p&gt;
</description>
      <guid>243668</guid>
      <pubDate>Sun, 05 Jul 2026 02:37:33 Z</pubDate>
      <itunes:author>Mister_Matthew_abc</itunes:author>
      <author>Mister_Matthew_abc</author>
    </item>
    <item>
      <title>Where is this form of dsolve and its constants described in Help text?</title>
      <link>http://www.mapleprimes.com/questions/243667-Where-Is-This-Form-Of-Dsolve-And-Its?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;I cannot find a description of the use of the form of dsolve and the following evaluation of its constants which are found in the downloaded worksheet.&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243667_question/Gnadig_2_problem_177_Rod_moving_on_a_wire_in_B_field.mw"&gt;Gnadig_2_problem_177_Rod_moving_on_a_wire_in_B_field.mw&lt;/a&gt;&lt;/p&gt;
</itunes:summary>
      <description>&lt;p&gt;I cannot find a description of the use of the form of dsolve and the following evaluation of its constants which are found in the downloaded worksheet.&lt;/p&gt;

&lt;p&gt;&lt;a href="/view.aspx?sf=243667_question/Gnadig_2_problem_177_Rod_moving_on_a_wire_in_B_field.mw"&gt;Gnadig_2_problem_177_Rod_moving_on_a_wire_in_B_field.mw&lt;/a&gt;&lt;/p&gt;
</description>
      <guid>243667</guid>
      <pubDate>Sat, 04 Jul 2026 19:50:14 Z</pubDate>
      <itunes:author>Earl</itunes:author>
      <author>Earl</author>
    </item>
    <item>
      <title>Three region plots </title>
      <link>http://www.mapleprimes.com/questions/243666-Three-Region-Plots-?ref=Feed:MaplePrimes:Tagged With Maple</link>
      <itunes:summary>&lt;p&gt;Dear sir how to plots the graphs in three region BC from -1 to 0 and 0 to 1 and 1 to 2&amp;nbsp;&lt;br&gt;
&lt;a href="/view.aspx?sf=243666_question/3_region_work.mw"&gt;3_region_work.mw&lt;/a&gt;&lt;/p&gt;
</itunes:summary>
      <description>&lt;p&gt;Dear sir how to plots the graphs in three region BC from -1 to 0 and 0 to 1 and 1 to 2&amp;nbsp;&lt;br&gt;
&lt;a href="/view.aspx?sf=243666_question/3_region_work.mw"&gt;3_region_work.mw&lt;/a&gt;&lt;/p&gt;
</description>
      <guid>243666</guid>
      <pubDate>Sat, 04 Jul 2026 16:51:01 Z</pubDate>
      <itunes:author>KIRAN SAJJAN</itunes:author>
      <author>KIRAN SAJJAN</author>
    </item>
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