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Advances in Continuous and Discrete Models

Theory and Modern Applications

Table 6 Numerical result of recovered population \(R(t)\) for fractional parameter \(\tau=0.7,0.8,0.9,1\) and comparison between classical and approximate solution

From: A mathematical model of COVID-19 using fractional derivative: outbreak in India with dynamics of transmission and control

t

Recovered population R(t)

Error

α = 0.7

α = 0.8

α = 0.9

α = 1

0

1311.09

647

232.73

66

0

50

1.66665 × 106

2.12307 × 106

2.63429 × 106

3.20032 × 106

1.86265 × 10−9

100

5.03577 × 106

6.50869 × 106

8.16997 × 106

1.00196 × 107

9.31323 × 10−9

150

8.07996 × 106

1.05078 × 107

1.32537 × 107

1.63177 × 107

1.49012 × 10−8

200

8.77051 × 106

1.14705 × 107

1.45318 × 107

1.79540 × 107

3.35276 × 10−8

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