The four functions inside a calculation
The values of these four functions can be used directly in a calculation, together with other complex numbers. Multiply 3 + 4i by its conjugate. Press 
, 
, 3, 
, 4, 
, 
, and 
. For the conjugate, press 
, 
, 3, , 4, , and . Press 
: 25., the square of the absolute value. For 2 × the argument of 1 + i, type 2, press , then , 
, 1, , , , and : 90. degrees.