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Math problem . I don't have my calculator here .
- Thread starter mmcmdl
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- Feb 27, 2023
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- 38
You have a very good trigonometrically capable calculator right at your fingertips. Open a terminal session on your computer (a "DOS window" if you are a Windows user) and if you have Python installed, (you certainly do if running Linux, might have to install if you are on WinDOHs) type "python3" [ENTER] and then "import math" [ENTER]. You will then be working in the python environment and have the powerful "math" library of functions at your command. You can't ask for a better calculator. Way better than "apps" that spoon feed the power to you, flavored with ads or paid for with your personal data. For simple arithmetic you do not have to import the math library. When calling higher functions you have to prefix the function with "math." and don't forget to include the period, i.e. like "math.sin()". Also the trig functions expect angular inputs to be in radians but there is a function for that, "math.radians()". Obviously you can also cut and paste to/from, which is extremely handy and useful. Can't do that with a handheld calc.
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Not so useless information- some people still believe the earth is flat even today- "Flat Earthers"
Last edited:
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- May 7, 2023
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That olive skinned dude with the three boats that invented the Indians.
Earth is flat, only 1000yrs old and the moon we never went to is made of cheese.
Damn, I just got punched by Buzz Aldrin!
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Columbus knew the earth was round. Many had sited the ships in the distance proof. But the calculations were way off, that's why he thought he had reached China and/or India
Christopher Columbus Never Set Out to Prove the Earth was Round | HISTORY
Humans have known the earth is round for thousands of years.
www.history.com
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- Feb 1, 2015
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My phones have all had a scientific calculator. It is an option you can select in the calculator app.
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- Jan 4, 2021
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- 2,851
iPhone you just turn the phone to landscape and the simple calculator turned into a full scientific version:
- Joined
- May 7, 2023
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- 2,094
Columbus knew the earth was round. Many had sited the ships in the distance proof. But the calculations were way off, that's why he thought he had reached China and/or India
Christopher Columbus Never Set Out to Prove the Earth was Round | HISTORY
Humans have known the earth is round for thousands of years.
Yeah but I’m 1/8 Native American so I don’t know some parts of history.
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- Jan 4, 2021
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- 2,851
You asked for it Dave:
Polar diameter (7,900 miles) is less than equatorial (7,926 miles) due to the spin.
Distance to the horizon depends on your height-of-eye (very important in navigation).
Graphically, this is what you get:
At 50 miles, the surface drops about 2,000 feet, so for all intents it's flat because you have no reference. Legend has it that Columbus saw a butterfly crawling up the far side of an orange and realized that the wings gradually appeared the same as sails on an approaching ship. Ergo, the Earth is round (like pie: cornbread are square). But yes, "people" knew the Earth was round before him.
Polar diameter (7,900 miles) is less than equatorial (7,926 miles) due to the spin.
Distance to the horizon depends on your height-of-eye (very important in navigation).
Graphically, this is what you get:
At 50 miles, the surface drops about 2,000 feet, so for all intents it's flat because you have no reference. Legend has it that Columbus saw a butterfly crawling up the far side of an orange and realized that the wings gradually appeared the same as sails on an approaching ship. Ergo, the Earth is round (like pie: cornbread are square). But yes, "people" knew the Earth was round before him.
Not even a square root?
More typos/SNAFUs by me.
What I was supposed to have written was the square root, not the square root of two.
Doh!
In any event, you would be unlikely to be able to see the curvature of the Earth by looking directly away from you - unless you could see the top of something that you knew was mote than 422.4 feet high and you knew how much you could see/not see.
On the other hand, it would be theoretically possible to see the curvature laterally - side to side - if you had a clear enough view. It's said that sailors in the middle of an ocean with a flat calm sea can detect it, though the visible horizon from sea level is only about 12 Nautical miles..