relational operators and floating poont comparisons

[loud dome]

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[fossil dawn]

It returns 1 and 0 but they say the second function call is messed up why is that??

[red lotus]

what does the tutorial say about it

it's all explained there, I'm not sure why you're asking here

[fossil dawn]

It says it approaches zero

[fossil dawn]

I dont wanna bottle things up id be wronging myself if i hid my thoughts of our interaction but Look English is not my first language.I ask here because I dont understand stuff.and i patiently wait for whoever is kind enough to help😇.if you ran out of patience for me then its cool ,others might chip in.coz you say that everytime I post and i dont know man thats how i feel.

[red lotus]

can you link the tutorial and explain what you don't get about it

[fossil dawn]

I
I dont understand why the second function call is wrong

https://www.learncpp.com/cpp-tutorial/relational-operators-and-floating-point-comparisons/

[red lotus]

because the numbers are too close to zero and multiplying with relEpsilon then produces a number which is too small

it's all explained though

[fossil dawn]

a-1 is not close to zero though

[red lotus]

a is almost 1 so a-1 is almost zero

[fossil dawn]

Use absolute epsilon (as we did in our first approach) I dont see it in the first approach though

[fossil dawn]

@red lotus you there??

[red lotus]

first example is right there

[fossil dawn]

@red lotus when they said first approach they meant this cide right here

[red lotus]

that wouldn't make sense, because that's using a relative epsilon

[fossil dawn]

Whats the diff for?@red lotus

[fossil dawn]

Yeah its a floating point but like what's it got to do with absepilson

[fossil dawn]

@red lotus you there?

[red lotus]

yeah

but I don't know what to tell you, the learncpp tutorial explains everything in depth, you just need to read it

you're asking why some code does what it does but then the learncpp tutorial explains it literally one paragraph below the code block

[fossil dawn]

Thats not it but ohkay

!solved