Findings:

• calculation
• Erlang B Calculations
• Beyond Calculation, The Next Fifty Years of Computing - A Commentary
• Recursive calculation of perfect numbers
• Sailboat performance calculations
• Back of the envelope calculation
• Notelet nodelet utility for counting and calculation
• A thunderbolt not included in the calculations
• socialist calculation problem
• Eleventh month calculations on an open letter to Frank J. Tipler
• Consciousness and Calculation

If you Log in you could create a "back-of-the-envelope calculation" node. If you don't already have an account, you can register here.