Melee Damage

This is how UO Forever currently figures melee damage.
This formula does not take into account damage absorption by armor or any other means.

Formula: basedamage + QualityModifier + ((basedamage + QualityModifier) * bonus) where bonus =

bonus += Math.Min(100.0, attacker.Str) / 500.0 +

bonus += Math.Min(anatomyValue, 100.0) / 500.0 + if (anatomy == 100)(bonus +0.1) +

bonus += (Math.Min(tacticsValue, 100) - 50.0) / 100.0 +

bonus += Math.Floor(lumberValue / 285);

Explanation and Example

Formula	Description	Example
((basedamage + QualityModifier + ((basedamage + QualityModifier) * bonus) where bonus =	(Weapon Base Damage + Exceptional Modifier) * Bonus	35+ 4 + ((35+4) * 1.35) = 91.65
bonus += Math.Min(100.0, attacker.Str) / 500.0 +	Lowest of (100 and Your Strength) / 500 +	0.2 +
bonus += Math.Min(anatomyValue, 100.0) / 500.0 + if (anatomy == 100)(bonus +0.1) +	Lowest of (Your Anatomy and 100) / 500 + (Additional .1 if GM Anatomy) +	0.3 +
bonus += (Math.Min(tacticsValue, 100) - 50.0) / 100.0 +	Lowest of ((Your Tactics and 100) -50) / 100 +	0.5 +
bonus = Math.Round(lumberValue / 285, 2);	Rounded to 2 decimal places (Your Lumberjacking / 285);	0.35;

The above information was based on a character with 100 Tactics, 100 Anatomy, 100 Lumber-jacking, and 100 Strength; getting a 35 roll of damage on whatever axe he/she would have had equipped.
The Formula does not match that given in the below referenced posts. That formula left out the basedamage itself, so it was corrected. The Quality modifier used was exceptional which adds 4 damage.

References:
Initial Post: http://www.uoforum.com/threads/publish-4-september-5-2014-meta-pets-pvp-tweaks-and-more.42697/
Correction: http://www.uoforum.com/threads/publish-4-september-5-2014-meta-pets-pvp-tweaks-and-more.42697/page-4