Patrick B.

I am trying to make a program that automatically corrects the perspective of a rectangle. I have managed to get the silhouette of the rectangle, and have the code to correct the perspective, but I... more

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Precalculus

03/15/19

What are the sin(na) and cos(na) functions from 2 to 10?

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Computer Programming

03/15/19

What is the difference between signed and unsigned variables?

I have seen these mentioned in the context of C and C++, but what is the difference between signed and unsigned variables?

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Microsoft Excel Excel

03/15/19

How do I automatically color cells in Excel?

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Microsoft Excel General Computer Microsoft Suite

03/15/19

How do I use IF function in Excel?

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Geometry

03/15/19

How do you find the equation of a parabola?

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Computer Programming

03/15/19

Whose responsibility is it to check data validity?

I am confused as to whether it is the *caller* or the *callee's* responsibility to check for data legality.Should the *callee* check whether passed-in arguments meet some other requirements so that... more

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Geometry

03/15/19

Why does Pythagoras work only for right triangles and not for scalene, too?

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Microsoft Excel Excel

03/15/19

How do you make a spreadsheet in Excel where the data points correspond to the product of the x and y axis without having to manually type in the formula for every cell?

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Microsoft Excel Excel

03/15/19

Can an Excel formula calculate a student’s marks?

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Prealgebra Prime Numbers Number Theory

03/15/19

How many primes do I need to check to confirm that an integer $L$, is prime?

I recently saw the 1998 horror movie "Cube", in which a character claims it is humanly impossible to determine, by hand without a computer, if large (in the movie 3-digit) integers are prime... more

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Calculus

03/15/19

How do I integrate ln(sin(x)) from 0 to π2?

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Algebra 2 Polynomials

03/15/19

Birthday polynomial project for birthdate 02/03/2002

Create polynomial using birthday 02/03/2002. Degree must be > 2, end behavior, amount of real and imaginary zeros, relative mins Max's, find all zeros, find all zeros, intervals of increasing... more

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Math Algebra 1

03/15/19

Orange juice question

One canned juice drink is 15% orange juice another is 5% orange juice how many liters of each should be mixed together in order to get 10L that is 7% orange juice

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Precalculus

03/15/19

What are all the possible rational zeros for f(x)=6x3+6x2−15x−2f(x)=6x3+6x2−15x−2?

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Precalculus

03/14/19

If f(x)f(x) is odd then is g(x)=⌊f(x)⌋g(x)=⌊f(x)⌋ also odd?

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Linux Unix

03/14/19

Using ls to list directories and their total sizes?

Is it possible to use `ls` in Unix to list the total size of a sub-directory and all its contents as opposed to the usual 4K that (I assume) is just the directory file itself? I.E. total 12K ... more

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