Problem 450. What is the distance from point P(x,y) to the line Ax + By + C = 0?

Bruce Raine

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Given a point, P(x,y), find the distance from this point to a linear line.

INPUTS: x, y, A, B, C

OUTPUTS: d, the distance which of course should always be positive.

EX:
>>x=2; y=2; A=2; B=2; C=-4;
>>d = normalLen(x,y,A,B,C)
d = 1.4142

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Solution Stats

Last Solution submitted on Mar 13, 2026

2 Comments

Claudio Gelmi on 23 Jan 2013

There is a mistake with the solution of Test #3. Ans should be 7.40. Please check.

Nicolas Douillet on 29 Nov 2022

I confirm this error.

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