第一章 单元测试

1、 问题:When the error propagation formula is , it is called exponential error propagation. ( )
选项:
A:对
B:错
答案: 【


2、 问题:

When performing( )operation with two similar numbers, it is easy to cause larger errors.(

选项:
A:Addition
B:Subtraction
C:Multiplication
D:Division
答案: 【
Subtraction

3、 问题:Which problems should be solved by numerical analytical tool ( )?
选项:
A:
B:
C:
D:
答案: 【


4、 问题:If p* =10.001 is an approximate of p = 10.000, then the relative error is ( )
选项:
A:
B:
C:
D:
答案: 【

5、 问题:To approach 1/3, we should use at least ( ) significant digits to guarantee a relative error of
选项:
A:
B:
C:
D:
答案: 【

第二章 单元测试

1、 问题:Suppose is a sequence that converges to p, with for all n. If positive constants and exist with
.
Then, if , the sequence is linearly convergent. ( )
选项:
A:对
B:错
答案: 【

2、 问题:The convergence rate of the bisection method is( ).
选项:
A:
B:
C:
D:
答案: 【

3、 问题:The convergence rate of the Newton’s method is( ).
选项:
A:
B:
C:
D:
答案: 【

4、 问题:Let and . Use Newton’s method to find . can be used as an initial point? ( )
选项:
A:对
B:错
答案: 【

5、 问题:The fixed-point problem g(x)=x-x3-4×2+10 cannot converge for initial point x0=1.5. ( )
选项:
A:对
B:错
答案: 【

第三章 单元测试

1、 问题:If a vector sequence converges to X in the L1 norm, it also converges to X in the norm.( )
选项:
A:对
B:错
答案: 【


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