I've just erase the "instead" on my note app ^^

@Chrono, it works thank you :)

Thank you Chrono, but i've already this option (has many others) and it doesnt work.

seems to be impossible to resolve with ruby :/
I've test every possible options...
But on every i'm turning between those results :

Expected : "1 * 5 = 5\n 2 * 5 = 10\n 3 * 5 = 15\n 4 * 5 = 20\n 5 * 5 = 25\n 6 * 5 = 30\n 7 * 5 = 35\n 8 * 5 = 40\n 9 * 5 = 45\n 10 * 5 = 50

Got : "1 * -40 = -40\n 2 * -40 = -80\n 3 * -40 = -120\n 4 * -40 = -160\n 5 * -40 = -200\n 6 * -40 = -240\n 7 * -40 = -280\n 8 * -40 = -320\n 9 * -40 = -360\n 10 * -40 = -400"

or

Expected : "1 * 38 = 38\n2 * 38 = 76\n3 * 38 = 114\n4 * 38 = 152\n5 * 38 = 190\n6 * 38 = 228\n7 * 38 = 266\n8 * 38 = 304\n9 * 38 = 342\n10 * 38 = 380"

Got : "1 * 38 = 38\n 2 * 38 = 76\n 3 * 38 = 114\n 4 * 38 = 152\n 5 * 38 = 190\n 6 * 38 = 228\n 7 * 38 = 266\n 8 * 38 = 304\n 9 * 38 = 342\n 10 * 38 = 380"

Once it doesnt wants the space after the results, and the next time it wants it.

What ???