Columns Definition and 106 Threads

Is there some easy way to determine the minimum number of dependent columns in a matrix? Assume the matrix entries are binary for convenience. Let's say I have an m x n, m>n matrix in the form (I | A) So that I is nxn, and A is m-n x n. This obviously depends on A. So is there some easy...

If you applied a force to a 1 foot diameter column of water and wanted to determine the pressure for only 1 inch diameter area of water would you only take the force directly above that 1 inch diameter. Or would the force for 1 inch diameter be the same as the force from the whole area of water...

Hey after I run my program in C++ I get my results this way with this line of code: cout << setprecision(7) << fa << '\t' << fm << '\t' << fabs(b-a); f(a) f(m) error -308 154.375 4.5 -308 25.70313 2.25 -308 -111.248 1.125 -111.248 -35.8313...

Sir, Please help me with this problem. # A vertical column of liquid 50 cm long at 50 degree Celsius balances another column of same liquid 60 cm long at 100 degree Celsius. What is the coefficient of absolute expansion of the liquid? I solved it in the following way: Pressure exerted...

Hi I got simple question. How is it that determain if a column in matrix is a pivot column? Sincerely Fred

Isn't possible to delete and remove columns after a table has been created? Rows works just fine but columns don't...