Question

Write a program to display multiplication table from two to nine for example:
2 x 1 = 2
2 x 2 = 4
2 x 3 = 6
2 x 4 = 8
2 x 5 = 10
2 x 6 = 12
2 x 7 = 14
2 x 8 = 16
2 x 9 = 18
2 x 10 = 20

Answer 1

okay, this is pretty straight forward. here's some Java-like pseudocode:

accumulator = 0;
for (n = 1; n <= 9; ++n) {
accumulator += 2;
print("2 x " + n + " = " + accumulator);
}

Answer 2

i don't understand accumulator

Answer 3

Ok thank

Answer 4

accumulator increments by 2 each iteration so for n = 1 it'll be 2
then for n = 2 it'll be 2 + 2 = 4
then for n = 3 it'll be 4 + 2 = 6
then for n = 4 it'll be 6 + 2 = 8

Answer 5

since we're iterating thru all the products it's cheaper to just keep adding 2 than to multiply 2 * n separately each time

Answer 6

Ok i'm testing ....

Answer 7

http://ideone.com/w1eVqo