j (EN)

letter၊ symbol

letter “j”

1. the lowercase form of the letter "J"
   စာရင်းသွင်းပါ ဥပမာဝါကျများ၏ ဘာသာပြန်ချက်များနှင့် တစ်လုံးချင်းစီ၏ အဓိပ္ပါယ်ဖွင့်ဆိုချက်များကို ကြည့်ရှုရန်။

   The word "jet" starts with the letter "j".

symbol “j”

1. in mathematical notation in electronics, a symbol used to represent the square root of -1
   In electrical engineering, we use j instead of i to represent the square root of -1, so that it is not confused with current.
2. in mathematics, a symbol representing the second unit vector following "i"
   In a 3D coordinate system, the vector j points directly up along the y-axis.