Processing math: 100%
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Input:
sum(k,k,1,x)
Write:
∑(k,k,1,x)
Compute:
x∑k=1k
Output:
x∑k=1k==12 x+12 x2
Result: 12 x+12 x2
zoom graph by mouse wheel.
y⋅d2ydx2-(dydx)2-1=0
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