Calculation form for 1/(1-x)  To the theory  To numerical studies  To sample expansions of 1/(1±x)
To the calculation form for 1/(1+x)
Input your values p, x and q, so that p<x<q and the interval (p,q) does not cover 1.
Click [Calculate], the answers will be shown at once. If you input othewise, the answers are not valid.
Input p= Input x= Input q=



 Results of calculation
First degree 1/(1-x)=+ x +r1
For x=, Sum of series(Approximation)=、True value=、Error(r1)=

Second degree 1/(1-x)=+ x+ x2 +r2
For x=, Sum of series(Approximation)=、True value=、Error(r2)=

Third degree 1/(1-x)=+ x+ x2+ x3 +r3
For x=, Sum of series(Approximation)=、True value=、Error(r3)=

Fourth degree 1/(1-x)=+ x+ x2+ x3 + x4 +r4
For x=, Sum of series(Approximation)=、True value=、Error(r4)=