The For loop calculates the factorial, factorial, and its inverse factorial of a number and

1             //factorial of 42             intJC = 4;//define a variable to represent the value to be computed3             LongJD = 1;//define the factorial of the final output4             5              for(inti = 1; I <= jc;i++)//define the Loop plus one, which is calculated from the beginning until the value entered6             {7JD = JD * I;//begins multiplication and continuously assigns the product of the previous number to the factorial8             }9System.out.println ("Factorial is:" +JD);//output factorialTen              One             

addition form of factorial calculation

1 //factorial of 42             intJC = 4;//define a variable to represent the value to be computed3             LongJD = 1;//define the factorial of the final output4             5              for(inti = JC; i > 1; i--)//directly defined in the calculated value, continuously minus one6             {7JD = JD * I;//The multiplication operation is performed, and the factorial operation of the high-level is continuously calculated to a value of8             }9System.out.println ("Factorial is:" +JD);//output factorialTen              One         

the subtraction form of factorial calculation

1         intJQ = 4;//define the number to be computed and assign a value2         intJW = 1;//define numeric factorial3         Doublesum = 0;//define the factorial of a number and4         5              for(inti = 1; I <= jq;i++)//loops, calculating factorial from the start6     7             {8             9JW = JW * i;//calculate factorialTen              Onesum = JW +sum;//calculate factorial and A          -             } -System.out.println ("Factorial and for:" +sum);//output factorial and

calculation of factorial and

1 intJQ = 2;//define the number to be computed and assign a value2             DoubleJW = 1;//defines the factorial value because the factorial value is reciprocal, so the double type is used to assign the value3             Doublesum = 0;//defines the factorial and, because factorial and is reciprocal, so the double type is used to assign the value4             Doublei = 1;//define an intermediate variable to facilitate the conversion of factorial values to reciprocal forms5             6              while(JW <=JQ)7             {8                 9 //• This trip has a question · //jw++; Ten                 //Add one here, JW will directly add 1, after output, will run more than once calculation, this is my humble opinion, please the Great God advice One                  Ai = i *JW; -i = 1/i; -jw++;//from the outset, add a the                  -sum = sum +i; -             } -System.out.println ("Factorial and for:" +sum); +             

the inverse factorial and

The For loop calculates the factorial, factorial, and its inverse factorial of a number and