Float multiplier = 3.0F; <= F?

Projects Programming
1

Hello friends,
found this in Adafruit sample code for ADS1115 IC:

float multiplier = 3.0F; /* ADS1015 @ +/- 6.144V gain (12-bit results) */

What does the "F" after the float value do?

I'm sure it's a stupid question, but it's not easy to google for "F" :frowning:

Also no explanation here:

2

It identifies the initializer value "3.0" as a 'float' type. It's redundant, since the variable already declared as a float.

3

Just moved to a proper section of the forum.

4

Thank you!

5

You're welcome.

6

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