ESP_Sprite wrote: ↑

Mon Jul 01, 2024 9:07 am

Float numbers are imprecise; probably the result of 0.1 + -0.1 is ever-so-slightly negative because of effectively a binary rounding error. Your print will round that number down to two digits after the decimal, so you get the 'weird' -0.00 result.

OK. Thanks for your reply.

Hello. Why when performing the following mathematical operation with float, the result is -0.0? I don't make sense of the "-" sign. Is it a bug? In the following code you can see the result: float val1 = -0.1; float val2; void setup(){ Serial.begin(115200); } void loop(){ val2 = val1 + 0.1; Serial.p...