Mathematics of Operations Research, Vol. 42, No. 3 (August 2017), pp. 662-691 (30 pages) Recently, in He et al. [He BS, Tao M, Yuan XM (2012) Alternating direction method with Gaussian back ...

Substitution means putting numbers in place of letters to calculate the value of an expression. The bracket has been worked out first. \(2 + (-8)^2 = 2 + 64\). \(-8^2\) means \(-8 \times -8\), which ...