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I tried to evaluate $\int_1^2 e^{x^3} dx$ is Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage:

I tried to evaluate $\int_1^2 e^{x^3} dx$ is Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage:

I tried to evaluate $\int_1^2 e^{x^3} dx$ is Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage:

I tried to evaluate $\int_1^2 e^{x^3} dx$ is in Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage:

I tried to evaluate $\int_1^2 e^{x^3} dx$ in Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage:

I tried to evaluate $\int_1^2 e^{x^3} dx$ in Sage. Is this a bug?

┌────────────────────────────────────────────────────────────────────┐
│ Sage Version 6.5, Release Date: 2015-02-17                         │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x');N(integrate(exp(x^3),x,1,2))
-138.557717219510 - 238.442320120796*I
sage: