sage: soln1 = lambda t: 196/3-196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t),0,29,plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t),30,50,plot_points=1000)

1 | initial version | Anonymous |

sage: soln1 = lambda t: 196/3-196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t),0,29,plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t),30,50,plot_points=1000)

The plots `P1`

and `P2`

below are correct,
but when I combine them using `P1 + P2`

,
there is a break. How to solve it?

```
sage: t = SR.var('t')
sage: soln1 = lambda t:
```~~196/3-196~~*exp(-3*t/20)/3
196/3 - 196*exp(-3*t/20)/3
sage: P1 = ~~plot(soln1(t),0,29,plot_points=1000)
~~plot(soln1(t), 0, 29, plot_points=1000)
sage: soln2 = lambda t: ~~1/10470~~*(102606*e^t 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = ~~plot(soln2(t),30,50,plot_points=1000)~~plot(soln2(t), 30, 50, plot_points=1000)

The plots `P1`

and `P2`

below are correct,
but when I combine them using `P1 + P2`

,
there is a break. How to solve it?

```
sage: t = SR.var('t')
sage: soln1 = lambda t: 196/3 - 196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t), 0,
```~~29, ~~30, plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t), 30, 50, plot_points=1000)
P1# the figure is right

The plots `P1`

and `P2`

below are correct,
but when I combine them using `P1 + P2`

,
there is a break. How to solve it?

```
sage: t = SR.var('t')
sage: soln1 = lambda t: 196/3 - 196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t), 0, 30, plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t), 30, 50, plot_points=1000)
P1# the figure is right
```

`P1`

and `P2`

below are correct,
but when I combine them using `P1 + P2`

,
there is a break. How to solve it?

```
sage: t = SR.var('t')
sage: soln1 = lambda t: 196/3 - 196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t), 0, 30, plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t), 30, 50, plot_points=1000)
P1# the figure is right
P2# the figure is also right
P1+P2 # the figure is wrong in the point (t=30)
```

`P1`

and `P2`

below are correct,
but when I combine them using `P1 + P2`

,
there is a break. How to solve it?

```
sage: t = SR.var('t')
sage: soln1 = lambda t: 196/3 - 196*exp(-3*t/20)/3
sage: P1 = plot(soln1(t), 0, 30, plot_points=1000)
sage: soln2 = lambda t: 1/10470*(102606*e^t + 573835)*e^(-t)
sage: P2 = plot(soln2(t), 30, 50, plot_points=1000)
P1# the figure is right
P2# the figure is also right
P1+P2 # the figure is wrong in the point (t=30)
```

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