Columns Definition and 103 Threads

  1. Amith2006

    Columns of liquids at different temperuatures

    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...
  2. M

    Determining Pivot Columns in a Matrix - Fred's Question

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

    Removing Columns After Table Creation Using SQL

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