What is the natural logarithm e approximately equal to? Can there be 10 decimal places? two point seven one eight four eight two point seven one eight two eight one eight two eight four five nine Which is right?

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• 1. Natural logarithm e accurate to 100, how to get out!
• 2. The larger the base of logarithm, the farther away the function image is from the positive direction of Y axis What is the meaning of "the farther away the function image is from the positive direction of y-axis"?
• 3. Mathcad draw logarithmic image, log can't add base. What should I do
• 4. Where does the base e of natural logarithm come from?
• 5. 10. Let a > 0, b > 0, e be the base of natural logarithm 10. Let a > 0, b > 0 and E be the base of natural logarithm A. If EA + 2A = EB + 3b, then a > B B. If EA + 2A = EB + 3b, then a < B C. If ea-2a = eb-3b, then a > B D. If ea-2a = eb-3b, then a < B A B after e is the index
• 6. Given that a and B satisfy b > a > e, where e is the base of natural logarithm, a ^ b > b ^ A is proved A ^ b > b ^ a B (LNA) > A (LNB) can you explain it?
• 7. The base of natural logarithm Don't give me a definition. What's the use of E? Many formulas are the simplest. Why?
• 8. Lim ┬ (n →∞) &; ((1 / (n ^ 2 + 1)] + 2 / (n ^ 2 + 2) + &; n / (n ^ 2 + n)) is equal to 1 / 2,
• 9. There is a point charge in vacuum, and the charge quantity is Q. according to Coulomb's law and the definition of electric field strength, the expression of electric field strength at the point where q is R is derived
• 10. Why should the charged body be regarded as a point charge when calculating the field strength? Is it because of Coulomb's law? E = KQ / r2
• 11. What is the use of natural logarithm e? When and how to use it?
• 12. How to get the value of E in natural logarithm? Please answer in plain language
• 13. On the base e of natural logarithm Excuse me? two hundred and seventy-one thousand eight hundred and one Is e - - = 3 ^ (- 10)? ninety-nine thousand nine hundred and ninety .. .271801 Is e - - = 3 ^ (- 10)? .99990 These dots are for space occupying, and they have no practical significance Although it's irrational, I want to ask you whether the formula I gave is true?
• 14. On the origin of natural logarithm e e=1+1+1/2!+1/3!+1/4!+… ..+1/n!+.=2.7182818284590.≈2.72 1 / 2 of them
• 15. The origin of natural logarithm e?
• 16. Is the instantaneous value of current (voltage) expressed by effective value or peak value?
• 17. The expression of Hall voltage and its derivation
• 18. It is known that the effective value of AC voltage is 220 V and the frequency is 50 Hz. When t = 0, the instantaneous value is 110 V, then the expression of the instantaneous value of the voltage is given
• 19. The instantaneous value expression of a sinusoidal AC voltage is u = ten times root sign two sin314tv, and the effective value of its voltage is?
• 20. The frequency of a sinusoidal alternating current is 50 Hz, the effective value is 5 A, and the initial phase is - II / 2 I hope the answer is more detailed