Can anyone see a way that I can calculate layerOutputs[layerIndex] using a LINQ expression?

Code:
                        
layerOutputs[layerIndex] = 0.0;
for (int layerInput = 0; layerInput < layerInputs.Length; layerInput++)
    layerOutputs[layerIndex] += _eventTree[layer][layerIndex] * layerInputs[layerInput];