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iOS Swift Basics Swift Operators Working With Operators: Part 2

Posted by michael wickert
michael wickert
2,040 Points

How does var x = 100 + 100 - ((5 * 2) / 3) % 7 give a value of 197?

I don't understand how this example = 197. It would make sense to me if the / 3 was not there.

operators.swift 
// Enter your code below

var initialScore = 8
initialScore += 1
let totalScore = !10
let isWinner = totalScore

1 Answer

Tomas Salas
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.a{fill-rule:evenodd;}techdegree seal-36
Tomas Salas
Front End Web Development Techdegree Graduate 37,934 Points
Tomas Salas
.a{fill-rule:evenodd;}techdegree seal-36
Tomas Salas
Front End Web Development Techdegree Graduate 37,934 Points

hello, that has to with rules of math , and swift knows this.

so it orders math operation following this rules to get that result. swift is using Int values. reason way is, that the remainder operator cannot work with type doubles.