Adding Float64DividePerformance and Float64MultiplyPerformance.
Adding the performance test results.
Adding Float32AddPerformance and Float32SubtractPerformance.
Adding Float64AddPerformance and Float64SubtractPerformance.
Adding one more comment.
Adding to Z-NOTES.txt.
Fourth-dim explanation, preliminary.
More notes to Z-NOTES.txt.
Expanding on Z-NOTES.txt.
Adding the beginnings of Z-NOTES.txt.
