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Question: About the Digits setting

Question:About the Digits setting

student_1 305 Maple
accuracy precision digits
February 05 2021
2

Dear there,

I have a code.mw

 

  • If I don't use command Digits in the code, I get the following result:

Question 1: The third column of matrix B includes 16 decimal, but the fourth column of matrix B includes 11 decimal. Why?

 

  • When I write the command Digits:=20, I get the following result:

 

Question 2: The last column of matrix B shows the absolute error of the method. 

When asked what is the absolute error of the method, what is the right answer?  (Because the higher the digit is chosen, the lower the absolute error is.)

 

Question 3: Are the two results consistent? How can we explain to someone who asks why the difference comes from?
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