# 20165207

## 1718 days 전, req134679 작성

과제 19
sec0.08 APPROX 1# # f(a+h)=f(a)+f prime (a)*h# # 여기서a+h=0.08# # a=0,h=0.08(충분히작은h),f(x)=secX,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(충분히작은h),f(x)=secX,f prime (x)=secX*tanX# File "", line 1, in 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.`