Egyptian 'nfr' was more like a reference point. They had a concept for the ”base” or ”ground-level,” for their architectural plans. For ex. ”1 cubit above nfr”. And all the nos. would b made by combining multiples of the symbols, so they hd no use for 0 even as a placeholder
THREAD!
You very cleverly picked the facts according to your narrative. And distorted them to subtly establish your false narrative that India is not the originator of Zero. So let me tell you the remaining unlooked facts that you "forgot" and show you the full history of zero.
[THREAD: ZERO]
— Amit Schandillia (@Schandillia) December 2, 2020
1/51
Once upon a time in the land of Mesopotamia, there lived a people who engaged in commerce, had a system of weights and measures, paid in currency, and most importantly, kept written records of all of this in clay tablets. These were the Sumerians.
Egyptian 'nfr' was more like a reference point. They had a concept for the ”base” or ”ground-level,” for their architectural plans. For ex. ”1 cubit above nfr”. And all the nos. would b made by combining multiples of the symbols, so they hd no use for 0 even as a placeholder
The Incas had the decimal system but so did the Harappan people in 3500 B.C.E.
Also, the Incas neither had the Idea of zero as an integer nor did they have a symbol for its representation.
Coming to the Babylonians, their placeholder was not a true zero bcoz it was not used alone, nor was it used at the end of a number. Thus nos. like 2 & 120 (2×60) looked same bcoz the larger nos. lacked a final sexagesimal placeholder. Only context could differentiate them.
And for Greeks, they had no symbol for zero (μηδέν) and did not use a digit placeholder for it. They seemed unsure about the status of zero as a number. They asked themselves, "How can nothing be something?"
Ptolemy, influenced by Hipparchus & Babylonians, ws using a symbol for zero(as shown in pic.) bt again the symbol he ws using ws used by two continuous mathematical functions, one within another, so it meant zero position (minutes of immersion at 1st & last contact), nt none
The Symbol used by Ptolemy changed over time. In the 2nd century was a very small circle with a long overbar. Later, the overbar shortened to only one diameter, similar to the modern o-macron (ō). The overbar was omitted in Byzantine manuscripts, leaving a bare ο (omicron).
This gradual change from an invented symbol to ο disproves the hypothesis that the Omicron was the initial of οὐδέν meaning "nothing". [Neugebauer, otto].
Also, the omicron was being used by the Greeks to represent 70.
Cheers 2 Mayans & Babylonians fr invnting wht is oftn calld as "Placeholders". Bt they were nthing more thn blank spaces or at times two wedge shapes. Wht they did ws solv a practical problem of distinguishing nos. like 89 and 809. They didn't thought of 0 as a concpt or num
No one even dared to think about concept of zero. Until a Rishi from India named Pingal gave the world the first recorded concept of Zero(Shunya). Which is later adopted by other civilisations. Around 250 A.D. India gives first recorded usage of Shunya in the Decimal system
And, then in mid 6th century, an INDIAN named Brahmagupt defined the first recorded rules of modern zero. Wherein Zero is an integer and is an average of -1 and +1.
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A THREAD ON @SarangSood
Decoded his way of analysis/logics for everyone to easily understand.
Have covered:
1. Analysis of volatility, how to foresee/signs.
2. Workbook
3. When to sell options
4. Diff category of days
5. How movement of option prices tell us what will happen
1. Keeps following volatility super closely.
Makes 7-8 different strategies to give him a sense of what's going on.
Whichever gives highest profit he trades in.
2. Theta falls when market moves.
Falls where market is headed towards not on our original position.
3. If you're an options seller then sell only when volatility is dropping, there is a high probability of you making the right trade and getting profit as a result
He believes in a market operator, if market mover sells volatility Sarang Sir joins him.
4. Theta decay vs Fall in vega
Sell when Vega is falling rather than for theta decay. You won't be trapped and higher probability of making profit.
Decoded his way of analysis/logics for everyone to easily understand.
Have covered:
1. Analysis of volatility, how to foresee/signs.
2. Workbook
3. When to sell options
4. Diff category of days
5. How movement of option prices tell us what will happen
1. Keeps following volatility super closely.
Makes 7-8 different strategies to give him a sense of what's going on.
Whichever gives highest profit he trades in.
I am quite different from your style. I follow the market's volatility very closely. I have mock positions in 7-8 different strategies which allows me to stay connected. Whichever gives best profit is usually the one i trade in.
— Sarang Sood (@SarangSood) August 13, 2019
2. Theta falls when market moves.
Falls where market is headed towards not on our original position.
Anilji most of the time these days Theta only falls when market moves. So the Theta actually falls where market has moved to, not where our position was in the first place. By shifting we can come close to capturing the Theta fall but not always.
— Sarang Sood (@SarangSood) June 24, 2019
3. If you're an options seller then sell only when volatility is dropping, there is a high probability of you making the right trade and getting profit as a result
He believes in a market operator, if market mover sells volatility Sarang Sir joins him.
This week has been great so far. The main aim is to be in the right side of the volatility, rest the market will reward.
— Sarang Sood (@SarangSood) July 3, 2019
4. Theta decay vs Fall in vega
Sell when Vega is falling rather than for theta decay. You won't be trapped and higher probability of making profit.
There is a difference between theta decay & fall in vega. Decay is certain but there is no guaranteed profit as delta moves can increase cost. Fall in vega on the other hand is backed by a powerful force that sells options and gives handsome returns. Our job is to identify them.
— Sarang Sood (@SarangSood) February 12, 2020
