20165207

1718 days 전, req134679 작성

과제 19 
       
sec`0.08 APPROX 1# # f(a+h)=f(a)+f prime (a)*h# # 여기서``a+h=0.08# # a=0,``h=0.08`(충분히`작은`h),``f(x)=sec`X,``f prime (x)=secX*tanX# # f(0.08)`=`f(0)+f prime (0)*(0.08)# # sec(0.08)=sec0+sec0*tan0*(0.08)=1+0# # THEREFORE `sec(0.08)` APPROX 1`` 
       
Traceback (click to the left of this block for traceback)
...
ValueError: Argument names should be valid python identifiers.
Traceback (most recent call last):    a=0,``h=0.08`(충분히`작은`h),``f(x)=sec`X,``f prime (x)=secX*tanX#
  File "", line 1, in <module>
    
  File "/usr/local/sage-5.12/devel/sagenb/sagenb/misc/support.py", line 744, in preparse_worksheet_cell
    s = preparse_file(s, globals=globals)
  File "/usr/local/sage-5.12/local/lib/python2.7/site-packages/sage/misc/preparser.py", line 1236, in preparse_file
    numeric_literals=not numeric_literals))
  File "/usr/local/sage-5.12/local/lib/python2.7/site-packages/sage/misc/preparser.py", line 1124, in preparse
    L = preparse_calculus(L)
  File "/usr/local/sage-5.12/local/lib/python2.7/site-packages/sage/misc/preparser.py", line 834, in preparse_calculus
    raise ValueError("Argument names should be valid python identifiers.")
ValueError: Argument names should be valid python identifiers.