Qiang Li questions

• how to output the data set when using histogram in mathematica
• how to fix this list assignment in mathematica
• reconstruct the image in Mathematica
• why doesn't this ReplaceAll work in mathematica
• how to generate a plot of planar Cantor set in mathematica
• Do operations for the second component of each element in a list in Mathematica
• how to animate 3d plot given a rotation axis in mathematics
• two list operations in mathematica
• sorting with changes to the other part in mathematica
• is mathematica able to do some planar geometry plotting

Qiang Li answers