Hello

I am a beginner with the writing of formulas.

I have two questions:

1.

In the triangle inequality average coloring program we find:

IF (!first)

az2 = cabs(#z - #pixel)

lowbound = abs(az2 - ac)

sum = sum + ((cabs(#z) - lowbound) / (az2+ac - lowbound))

ELSE

first = false

ENDIF

I suppose that !first means the value of first but I am not sure.

- I don't understand very well how this program works. Please can you explain?

Thank You

Hello
I am a beginner with the writing of formulas.
I have two questions:
1.
In the triangle inequality average coloring program we find:
IF (!first)
az2 = cabs(#z - #pixel)
lowbound = abs(az2 - ac)
sum = sum + ((cabs(#z) - lowbound) / (az2+ac - lowbound))
ELSE
first = false
ENDIF
I suppose that !first means the value of first but I am not sure.
2. I don't understand very well how this program works. Please can you explain?
Thank You