complex number
number that can be put in the form a + bi, where a and b are real numbers and i is called the imaginary unit
en-GB/ˈkɒmplɛks ˈnʌmbə/
en-US/ˈkɑmplɛks ˈnʌmbɚ/
number that can be put in the form a + bi, where a and b are real numbers and i is called the imaginary unit