<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">double d1(1.0);
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">이거를
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">setprecision 설정해서 출력하면
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">왜 1.0000000000000001&nbsp; 이런식으로 안나오고
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">그냥 1이 나오죠
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">21:03 여기서는setprecision 설정해서 0.1 출력했을때
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">0.100000000000001 이런식으로 나왔자나여
<p style="box-sizing: inherit; margin: 0px 0px 1em; padding: 0px; font-size: 16px; line-height: 1.6; color: #454545; font-family: 'Spoqa Han Sans', 'Apple SD Gothic Neo', BlinkMacSystemFont, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: #ffffff;">

예리하죠 젲가 그래서 별명이 식칼입니다

아주 예리하시네요. 중요한 질문입니다. 컴퓨터는 십진수 0.1을 정확하게 표시할 수 없습니다. 본 강의에서도 언급한 기억이 있는데 일단은 아래 링크 강의 참고하세요.&nbsp;
https://youtu.be/Yr6qgFxJc5E

인프런 커뮤니티 질문&답변

23:18 여기 질문이요