-- square the size of the real part
-- square the size of the imaginary part
-- add the two squares together
-- take the square root of the sum.
Hey! That sounds a lot like the Pythagoras thing in a right triangle.
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The absolute value of a number is the positive (or non-negative) value of the number. The absolute value of 0 or a positive number is the number itself. The absolute value of a negative number is its positive equivalent.
Absolute value of -13 is 13.
The absolute value of a number is the distance from that number to 0. Therefore, the absolute value is ALWAYS positive. the absolute value of -4.2 is 4.2 To find the absolute value, just determine how far it is from 0.
To find the absolute value of 1.5, you simply ignore the negative sign, if any, and take the positive value. Since 1.5 is already a positive number, its absolute value is 1.5. The absolute value function essentially returns the distance of a number from zero on the number line, regardless of its sign.
Because when you find the absolute value you're finding the distance a number is from zero without considering its sign (+ or -). You just have to make the number positive.