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171 | 171 | }, |
172 | 172 | "dateCreated" :"2024-08-31", |
173 | 173 | "datePublished":"2024-08-31", |
174 | | -"dateModified" :"2025-01-31", |
| 174 | +"dateModified" :"2025-02-01", |
175 | 175 | "description" :"History and detailed disapproval of the mathematical constant π; definition and derivation of the properties of shapes from the area of a circle.", |
176 | 176 | "disambiguatingDescription": "Exact formulas. No pi.", |
177 | 177 | "image":[ |
@@ -312,10 +312,25 @@ <h1 style="font-size:160%;margin:7px;">How Accurate Are The Conventional Geometr |
312 | 312 | Ancient civilizations grappled with this geometric challenge, employing various methods to approximate this ratio. |
313 | 313 | <br> |
314 | 314 | <br> |
315 | | -A Greek mathematician is credited with refining these approximations through the method of in- and circumscribed polygons. |
316 | | -His approach was that the ratio between the perimeter and the diameter of a circle can be estimated by comparing the circumference of the circle to the perimeters of an in- and a circumscribed polygon. The polygons can be divided into triangles. The ratio between the triangles' legs and their hypotenuses can be measured linearly. |
317 | | -That's where the pi/delta=3.14... denotation might originate from. |
318 | | -This method has several limitations. He tried to increase the accuracy by increasing the number of the sides of the polygons. This approach cannot yield an accurate result. |
| 315 | +A Greek mathematician is credited with refining these approximations through the method of inscribed and circumscribed polygons. |
| 316 | + |
| 317 | +His approach was that the ratio between the perimeter and the diameter of a circle can be estimated by comparing the circumference of the circle to the perimeters of an inscribed and a circumscribed polygon. |
| 318 | +The polygons can be divided into triangles. The ratio between the legs of the triangles and their hypotenuses can be measured linearly. |
| 319 | + |
| 320 | +That is where the pi/delta=3.14... notation might originate from. |
| 321 | + |
| 322 | +This method has several limitations. He tried to increase the accuracy by increasing the number of sides of the polygons. This approach cannot produce an accurate result. |
| 323 | + |
| 324 | +The same coefficient was used to calculate the ratio between the squared radius and the area of a circle. |
| 325 | +Despite these early advances, a precise, universally accepted value of this constant remained elusive for centuries. |
| 326 | + |
| 327 | +With its value believed to be an infinite fraction, it seemed necessary to denote it by a sign in the equations. |
| 328 | + |
| 329 | +It was not until the 18th century that the symbol π, popularized by the mathematicians of the time, gained widespread acceptance. |
| 330 | + |
| 331 | +Several complex formulas were introduced by different mathematicians, aimed at more accurately estimating this ratio, based on a theoretical polygon with an infinite number of sides. |
| 332 | + |
| 333 | +All of the comparison methods mentioned above have one thing in common. They are estimating the perimeters of polygons and do not account for the curved shape of the circle. |
319 | 334 | <br> |
320 | 335 | <br> |
321 | 336 | The same coefficient was used to calculate the ratio between the squared radius and the area of a circle. |
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