IFD:EAI SoS21/course material/Session 3: File Structuring, Pointers and Addresses: Difference between revisions
From Medien Wiki
| Line 2: | Line 2: | ||
Here are the solutions of last week's task. | Here are the solutions of last week's task. | ||
Please try a little to solve on your own, before you peek in here! :) | Please try a little to solve on your own, before you peek in here! :) | ||
To get the distance between two points on a 2D plane we can use the Pythagorean theorem as depicted in the picture below. We give coordinates to the points and use the coordinates to calculate the distance according to the formula c = sqrt( (x2-x1)^2 + (y2-y1)^2 ), where c is the distance between the two points. | To get the distance between two points on a 2D plane we can use the Pythagorean theorem as depicted in the picture below. We give coordinates to the points and use the coordinates to calculate the distance according to the formula c = sqrt( (x2-x1)^2 + (y2-y1)^2 ), where c is the distance between the two points. | ||
| Line 15: | Line 13: | ||
}</source> | }</source> | ||
Note that, for the sqrt() function to be known to the compiler, you need to include the math library with <source lang="c++" line start="1" highlight="4">#include <math.h></source> | Note that, for the sqrt() function to be known to the compiler, you need to include the math library with <source lang="c++" line start="1" highlight="4">#include <math.h></source> | ||
[https://replit.com/@abnutzer/Homework-1-Distance-Function Distance Function Complete Code] | |||
==File Structuring== | ==File Structuring== | ||