Talk:Sridhara

Untitled

And that rule was? --Taejo 14:45, 1 August 2005 (UTC)

Check out quadratic equation. Basically the rule states that the root of a quadratic equation are as follows:

$x_{1,2}={\frac {-b\pm {\sqrt {b^{2}-4ac\ }}}{2a}}$

--May the Force be with you! Shreshth91($ |-| ŗ 3 $ |-| ţ |-|) 16:28, 22 March 2006 (UTC)

Quadratic derivation

There really isn't any reason to duplicate the information found at quadratic equation here. A link there is the appropriate way of providing the mathematics and derivation of the formula; this article should focus on the biography of Shridhara. -- Jonel | Speak 12:03, 28 June 2006 (UTC)

Most people here would expect to see the formula itself here on this page, as can be seen from the comment above. However, I will summarize it and make it short, and then link it to quadratic equation using {{main}}. --May the Force be with you! Shreshth91^{(review me!)} 16:11, 28 June 2006 (UTC)

WikiProject class rating

This article was automatically assessed because at least one WikiProject had rated the article as stub, and the rating on other projects was brought up to Stub class. BetacommandBot 19:54, 9 November 2007 (UTC)

Not the first to derive quadratic equation

Sridhara wasn't the first to derive the quadratic equation; Brahmagupta described it in Brāhmasphuṭasiddhānta two centuries before Sridhara was born. The page on Brahmagupta itself says as much even. In fact, a lot of the claims here about Sridhara's "notable work" sound a lot like things described in the Brāhmasphuṭasiddhānta. Did someone get the two mathematicians confused? Wanted to check about this before editing the page. Idran (talk) 07:14, 3 December 2020 (UTC)

এইটো শ্ৰীধৰাচাৰ্যই আৱিষ্কাৰ কৰিছিল। আনে নহয়। 2409:40E6:F:D9A2:8000:0:0:0 (talk) 12:55, 23 August 2024 (UTC)

Please stick to English on English Wikipedia. The above machine translates to "This was discovered by Sridharacharya. Not others." –jacobolus (t) 15:31, 23 August 2024 (UTC)

Ye kasa pyar hai

Yes 2402:8100:31D0:7784:0:7:9788:DB01 (talk) 07:21, 2 June 2022 (UTC)

Reliable sources

@Thetazero: – None of these:

• https://www.ajabgajabfacts.com/sridharacharya-biography-in-hindi/
• https://vedicmathschool.org/sri-dharacharya/
• https://www.getbengal.com/details/sridhar-acharya-the-forgotten-bengali-mathematician

is a "reliable source" by Wikipedia standards. See Wikipedia:Reliable sources. These web pages cannot be cited in support of claims made on Wikipedia. If you want to make claims here, you need to find support for them in reliable, published sources. These two sources are even worse:

• https://dbpedia.org/page/Sridhara
• https://medium.com/@manoj.pillai/shridharacharya-solving-quadratic-equations-in-the-9th-century-d1f64908e662

Both are just out-of-date material copied and pasted from old versions of this Wikipedia page.

Beyond that, you need to discuss on the talk page instead of edit warring. Edit warring is disruptive to Wikipedia, and persisting in edit warring can lead to a temporary block. –jacobolus (t) 05:35, 28 April 2024 (UTC)

Can we at least agree that the Bengal claim is more likely?

In my edit, South India was also mentioned, but only as an alternative view point.

In Aryabhata's page also Patna claim has been given preference over other claims.

Besides, where does wikipedia state that Encyclopaedia Britannica is an unquestionable source? Especially given that the info provided has not been referenced? Thetazero (talk) 05:46, 28 April 2024 (UTC)

No, we can't agree on anything that is not published in reliable sources. We have almost zero information about Sridhara's life, and detailed claims such as what village he was from, his father's name and occupation, etc. are almost certainly false. If you don't like Hayashi's Britannica entry, all of the other reliable sources I can find are in broad agreement. We can add a couple more sources in the footnote if you want. –jacobolus (t) 05:49, 28 April 2024 (UTC)

Which claims are almost cetrainly false ? And why? On what basis?

Even Mactutor history also only gives Bengal in quick info.

https://mathshistory.st-andrews.ac.uk/Biographies/Sridhara/ Thetazero (talk) 05:55, 28 April 2024 (UTC)

The claims you keep re-insterting in this article are not supported by reliable sources, and are almost certainly false. It's not clear who made them up, but you cannot insert this type of claim into Wikipedia articles unless you have a reliable source.

Here is the text you keep inserting:

"He was probably born around (c. 870 CE) in Bhuriśreṣṭi (Bhurisriṣṭi or Bhurśuṭ) village in South Rādha at present day Hugli in West Bengal, then undivided Bengal with its Capital at Gaur. His father's name was Baladevācārya and his mother's name was Acchoka. His father was a Sanskrit pandit and philosopher"

And here is what MacTutor's page says:

"We do know that Sridhara was a Hindu but little else is known. Two theories exist concerning his birthplace which are far apart. Some historians give Bengal as the place of his birth while other historians believe that Sridhara was born in southern India."

Can you tell the difference between these? The claim that this source supports the text you want to keep is entirely absurd.

Each claim made (in your text above, that would include (1) Śrīdhara was born in Bhuriśreṣṭi village in South Rādha, (2) Śrīdhara father's name was Baladevācārya, (3) Śrīdhara's mother's name was Acchoka, (4) Śrīdhara's father was a Sanskrit pandit and philosopher) must have a reliable published source supporting it (ajabgajabfacts.com is not good enough). There are no reliable sources making these claims. What the reliable sources say instead is that we know almost nothing about Śrīdhara's life because the only evidence we have is a few copies of texts and a few mentions of his name in other works.

The claim that Śrīdhara was born c. 870 CE is made by some reliable sources, but this date, even with the "circa", is more specific than I think is really supportable. Scholars disagree on Śrīdhara's dates, and Wikipedia should try to accurately report the disagreement.

@Thetazero If you persist in edit warring any further I will recommend that an administrator temporarily block you from editing. Your behavior here is disruptive. –jacobolus (t) 13:39, 28 April 2024 (UTC)

Almost each of those claims that you claim to be made up are also present here:

https://www.slideshare.net/slideshow/sridharacharya1/47896882

The slide predates any of the other sources.

This slide was made by a professor from a LAD college Nagpur Mathematics Department.(The professor is neither Bengali nor South Indian)

Also, If nothing is known about Sridhara as you claim, then how is it even known that he might be born in Bengal or South India? You seem to have made up your mind purely based on secondary sources with limited information. Your confidence that these are false claims is not backed up by evidence. Thetazero (talk) 07:15, 29 April 2024 (UTC)

This slideshow doesn't load in my browser, but slideshare is not a "reliable source" by Wikipedia standards. If these claims come from a peer-reviewed source, then please just give a citation. My best guess is that this professor copied these factoids from Wikipedia into their slides without checking it; this kind of thing unfortunately happens all the time, cf. Wikipedia:Citogenesis. The birthplace and father/mother names were added in September 2011 by user:Solomon7968 in the edit special:diff/449159117, which did not include any source. If you want to validate this you should ideally look for sources that are older than 2011. –jacobolus (t) 07:24, 29 April 2024 (UTC)

Here is what R. C. Gupta says:

"Like so many ancient Indian authors, Śrīdhara did not provide any information about himself in his works. Other sources have not been helpful in finding any glimpse of his personal life. So we do not know his parents or teachers, or even where he was born, educated, or worked. But some evidence shows that he was a Saivite Hindu."

–jacobolus (t) 18:27, 30 April 2024 (UTC)

@Thetazero Aha, here's a better source explaining the mixup, JSTOR 44028406:

"The definite period of Śrīdharācārya is not available in any of the ancient Hindu printed books or manuscripts. The works of Śrīdharācārya available at present and the commentaries on them do not mention at all his place of birth and age. Several mathematicians have tried to fix the age of Śrīdhara, but there is no unanimity among them. I am giving below their opinions about the date along with my own comments in each case.

"Pt. Sudhāhkara Dvivedi, in his 'Gaṇakatarangiṇī' a book giving the life histories of different anoient Hindu mathematicians writes that Śrīdhara wrote a book "Nyāyakandalī" and flourished in 991 A.D., and that his father was Baladeva and mother was Abboka and he hailed from Bengal from the village Bhurishraishtika on the west coast of the Ganges in the Radhi province. Thus Pt. Sudhākara Dvivedi has fixed the date on the presumption that Śrīdhara who wrote "Nyāyakandalī" is the same Śrīdhara who wrote "Pātīgaṇita". Unless the above presumption is rigidly proved, which he has not even attempted, his conclusion about the date cannot be accepted as correct, as there can be many authors of the same name as Śrīdhara. [...]"

So apparently the issue here is a mixup with a different person named Śrīdhara dating from 1–2 centuries after the Śrīdhara who is the subject of this article. –jacobolus (t) 18:45, 30 April 2024 (UTC)