Hi,

Sage behavior seems to be different on the console:

~/sage-9.6/b01$ ./sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.6.beta1, Release Date: 2022-02-13               │
│ Using Python 3.8.10. Type "help()" for help.                       │
└────────────────────────────────────────────────────────────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Warning: this is a prerelease version, and it may be unstable.     ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
sage: A = matrix([[1,2],[3,4]])
sage: A^0; A^1; A^2; A^3; A^4
[1 0]
[0 1]
[1 2]
[3 4]
[ 7 10]
[15 22]
[ 37  54]
[ 81 118]
[199 290]
[435 634]

sage: for i in [0,1,2,3,4]:
....:         A^i
....:
[1 0]
[0 1]
[1 2]
[3 4]
[ 7 10]
[15 22]
[ 37  54]
[ 81 118]
[199 290]
[435 634]
sage: for i in [0..4]:
....:         det(A^i)
....:
1
-2
4
-8
16
sage:


A clarification is much appreciated if the 'sage help' is applicable to 
sage console only:
http://localhost:8888/kernelspecs/sagemath/doc/prep/Programming.html#lists-loops-and-set-builders

Do we have different documentation for the sage console and Jupyter 
notebook?

Regards,

phiho

On Sunday, February 20, 2022 at 8:40:31 AM UTC-5 Eric Gourgoulhon wrote:

> Hi,
>
> Le samedi 19 février 2022 à 03:28:03 UTC+1, hohoa...@gmail.com a écrit :
>
>>
>>
>>    1. In [3] only gives A^4 in Out [3] (missing A^0, A^1, A^2 and A^3)
>>    2.  In [4] gives no output (but In [8] does)
>>    3. In [6] gives no output (but In [7] does)
>>
>> There is no bug in all this. To display some item at each step of a loop 
> use show() or print(), e.g.
>
> for i in [0, 1, 2, 3, 4]:
>      show(A^i)
>
> Eric.
>

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