finished Task05 and started Task06

Task06: Print out the value of pi on the basis of an infinite series: Pi
= 4 - 4/3 + 4/5 - 4/7 + 4/9 - 4/11 + ...
How many members are required for a number of values ​​of 3.14, 3.141,
3.1415, 3.14159 ?