Calculus Another possible typo in "Cálculo", by Robert A. Adams

[mcastillo356]

I am almost sure, but want to check out. This is the statement of the example at the Spanish 6th edition:
Example 4 At a certain moment an aeroplane flying to the East at 400 km/h passes directly over a car traveling to the Southwest at 100 km/h on a straight road with no slopes (...)

Shouldn't be the car traveling to the Southeast, regarding the provided diagram?



Regards

 

[Frabjous]

Yes. Notice that the diagram is 3d.

 

[hutchphd]

Did M.C. Escher draw the diagram?? It kept flipping on me...

 

[vanhees71]

Well, I didn't realize that it was meant to be 3D in the first place. Though shalt not make (bad) images!

 

[mcastillo356]

Well, I didn't realize that it was meant to be 3D in the first place. Though shalt not make (bad) images!

Sorry, what means though shalt? I find "thou shalt"; it's a nice and cute expression at Longman Dictionary of Contemporary English, meaning "you shall", used when talking to a person. I understand the second sentence as a beautiful and kind disapproval.

 

[Dragon27]

Obviously, it should be "thou" (even the greatest make typos, as we found out in one of the neighboring threads). "Thou shalt not" is a typical formula with which many of the ten commandments (in King James Bible) begin (the words and grammar are, of course, outdated nowadays, but familiar to most natives due to enduring popularity of this version of the translation of the Bible).

 

[PeroK]

... and from Shakespeare. As in:

This above all: to thine own self be true
And it must follow, as the night the day
Thou canst not then be false to any man
Farewell, my blessing season this in thee!”