The four functions inside a calculation

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\displaystyle 3+4i by its conjugate. Press on C, open bracket, 3, plus, 4, the i key, close bracket, and times. Then enter the conjugate: maths, 0, 3, plus, 4, the i key, and close bracket. Press equals: 25., the square of the absolute value. For 2\displaystyle 2 times the argument of 1+i\displaystyle 1+i, type 2, press times, then maths, 1, 1, plus, the i key, close bracket, and equals: 90. degrees.