2pi sq'd (6.28318531 x 6.28318531) = 39.478417. 2pi cb'd = 248.050213. Divide 39.478417 / 248.050213 = 0.1591549. Please correct me if I'm wrong. I don't think forgetting PEMDAS is the reason for the miscalculation... Maybe it's the conversion of pi instead of using the value of dbl pi that's throwing the math off (meaning pi sq'd x 2 = 19.739208 instead of 2pi's value of 6.2831853..... sq'd and cb'd.) OR: Just use parentheses (2pi) sq'd / (2pi) cb'd = 0.1591549 :D
Thanks for your constructive comments. I really don't want to be overly critical of his mathematical ability. It's just a little dissapointing to see basic errors like this on what is on the whole a commendable piece of work. On a more positive note, I find his presentation of the material both excellent and enjoyable to watch.
At 7:54 you can't give an answer accurate to 8 decimal places when your calculation contains a measured value accurate to only 6 decimal places. The answer should be given to 6 decimal places or less.
@feynmanrich At 7:54 he gives more decimals in the answer because he himself calculated it the other way, and he presents the proof in the video. He is smart but not properly educated.
@feynmanrich Niuce you spotted errors. Thank you. To correct Carl Munck you must contact him through thepyramidmatrix. I have found he often uses the division-symbol when it should be other symbols. And he does not use parentheses properly. But the formula on 9:05 still makes no sense.
@feynmanrich i got it. Its the reciprocal of double pi. It comes up in many other computations in geometry. To get the reciprocal of a fraction, just the fraction. For example, the reciprocal of 3/4 is 4/3. The reciprocal of 1/5 is 5/1 or just plain 5.
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2pi sq'd (6.28318531 x 6.28318531) = 39.478417. 2pi cb'd = 248.050213. Divide 39.478417 / 248.050213 = 0.1591549. Please correct me if I'm wrong. I don't think forgetting PEMDAS is the reason for the miscalculation... Maybe it's the conversion of pi instead of using the value of dbl pi that's throwing the math off (meaning pi sq'd x 2 = 19.739208 instead of 2pi's value of 6.2831853..... sq'd and cb'd.) OR: Just use parentheses (2pi) sq'd / (2pi) cb'd = 0.1591549 :D
Ankheru 1 month ago
@Ankheru i didnt flag this. someone else did.
Culturealimprovement 1 month ago
Thanks for your constructive comments. I really don't want to be overly critical of his mathematical ability. It's just a little dissapointing to see basic errors like this on what is on the whole a commendable piece of work. On a more positive note, I find his presentation of the material both excellent and enjoyable to watch.
feynmanrich 3 months ago
At 7:54 you can't give an answer accurate to 8 decimal places when your calculation contains a measured value accurate to only 6 decimal places. The answer should be given to 6 decimal places or less.
feynmanrich 3 months ago
@feynmanrich At 7:54 he gives more decimals in the answer because he himself calculated it the other way, and he presents the proof in the video. He is smart but not properly educated.
Culturealimprovement 3 months ago
At 9:05 2pi squared divided by 2pi cubed does not equal 0.159154943. Also, dividing this equation by 2pi gives 1 over 2pi squared, not 2pi squared.
feynmanrich 3 months ago
@feynmanrich Niuce you spotted errors. Thank you. To correct Carl Munck you must contact him through thepyramidmatrix. I have found he often uses the division-symbol when it should be other symbols. And he does not use parentheses properly. But the formula on 9:05 still makes no sense.
Culturealimprovement 3 months ago
@feynmanrich i got it. Its the reciprocal of double pi. It comes up in many other computations in geometry. To get the reciprocal of a fraction, just the fraction. For example, the reciprocal of 3/4 is 4/3. The reciprocal of 1/5 is 5/1 or just plain 5.
Culturealimprovement 3 months ago
Comment removed
Ankheru 1 month ago