implements [grain1, grain2]
Syntax
g = [grains_1, grains_2, grains_n]
g = [grains('fe') grains('mg')]
g = [grains(1:100) grains(500:end)]
implements [grain1, grain2]
g = [grains_1, grains_2, grains_n]
g = [grains('fe') grains('mg')]
g = [grains(1:100) grains(500:end)]