如何將System.IObservable<string>轉換爲System.IObservable<System.Collections.Generic.List<string>>? public static IObservable<List<string>> GetUrlList(Uri url) {
var result = (from request in Observable
請參考以下MWE: import sympy as s
x = s.IndexedBase('x')
y = s.IndexedBase('y')
i,j,k = map(s.Idx,['i','j','k'])
a = s.exp(x[i]*y[j]*s.KroneckerDelta(i,j))
b = a.diff(x[j])
的b值是LaTeX rendering of b。因
我現在用的鑄造核彈之前提到的,我碰到這樣一個問題: 這裏是我的程序: def testing(*args):
for a in nuke.allNodes('Read'):
if 'lighting' in a ['name'].value():
readlgt = a
if 'GI' in a['name'].value():