Two sums and two variables
Two sums and two variables
(OP)
How to write an equation in mathcad with two sums and two variables
For example: sum of all i-es and sum of all j-es, of equation q*k*yij
For example: sum of all i-es and sum of all j-es, of equation q*k*yij





RE: Two sums and two variables
RE: Two sums and two variables
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Two sums and two variables
RE: Two sums and two variables
I suggest that you use the help files and read the examples, or ask your instructor
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Two sums and two variables
i = 1 year time increment
n = (year of the calculation) – (initial year of waste acceptance)
j = 0.1 year time increment
k = methane generation rate (1/yr)
Lo = potential methane generation capacity (m3/Mg)
Mi = mass of solid waste disposed in the ith year (Mg)
t[ij] = age of the j-th section of waste mass Mi disposed in the i-th year (decimal years)
MCF = methane correction factor
F = fire adjustment factor
My job is to solve this equation, but I have to explain mathcad this t[i,j] variable, because it's dependable of i and j. Even if I assign this variable with any number, my equation won't work... Anyone?
RE: Two sums and two variables
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Two sums and two variables
RE: Two sums and two variables
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Two sums and two variables