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1. Dictionary

   float

   /flōt/

   verb

   • 1. rest or move on or near the surface of a liquid without sinking: "she relaxed, floating gently in the water" Similar stay afloatstay on the surfacebe buoyantbe buoyed upOpposite sink
   • ▪ cause (a buoyant object) to rest or move on the surface of a liquid without sinking: "trees were felled and floated downstream"
   • ▪ be suspended freely in a liquid or gas: "fragments of chipped cartilage floated in the joint"
   • 2. move or hover slowly and lightly in a liquid or the air; drift: "clouds floated across a brilliant blue sky" Similar hoverlevitatebe suspendedhangdefy gravitydriftglidesailslipslidewaftflowstreammovetravelbe carriedOpposite rush
   • ▪ (of a rumor, idea, etc.) circulate: "the notion was floating around Capitol Hill"
   • ▪ (in sports) make (the ball) travel lightly and effortlessly through the air: "he floated the kick into the net"
   • ▪ (of a sight or idea) come before the eyes or mind: "the advice his father had given him floated into his mind"
   • 3. put forward (an idea) as a suggestion or test of reactions. Similar suggestput forwardcome up withsubmitraisemootproposeadvanceofferprofferpositpresenttabletest the popularity oftableinformal:run something up the flagpole (to see who salutes)Opposite withdraw
   • ▪ offer the shares of (a company) for sale on the stock market for the first time. Similar launchget goingget off the groundoffersellintroduceestablishset upinstitutepromoteOpposite wind upbuy back
   • 4. (of a currency) fluctuate freely in value in accordance with supply and demand in the financial markets: "a policy of letting the pound float"
   • ▪ allow (a currency) to fluctuate in value.

   noun

   • 1. a thing that is buoyant in water.
   • ▪ a small object attached to a fishing line to indicate by moving when a fish bites.
   • ▪ a cork or buoy supporting the edge of a fishing net.
   • ▪ a hollow or inflated organ enabling an organism (such as the Portuguese man-of-war) to float in the water.
   • ▪ a hollow structure fixed underneath an aircraft enabling it to take off and land on water.
   • ▪ a device floating on the surface of a liquid that forms part of a valve apparatus controlling flow in and out of the enclosing container, e.g., in a toilet tank or a carburetor.
   • ▪ a platform mounted on a truck and carrying a display in a parade: "a carnival float"
   • 2. a hand tool with a rectangular blade used for smoothing plaster or concrete.
   • 3. a soft drink with a scoop of ice cream floating in it: North American "root-beer floats"
   • 4. (in critical path analysis) the period of time by which the duration of an activity may be extended without affecting the overall time for the process.

   Word Origin Old Englishflotian (verb), of Germanic origin and related to fleet4, reinforced in Middle English by Old French floter, also from Germanic.

   Scrabble Points: 8

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2. forum.arduino.cc › t › define-a-floatdefine a float - Programming Questions - Arduino Forum

   forum.arduino.cc › t › define-a-float

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   Jan 28, 2018 · Hello, I am all new to Arduino and C++ and trying to learn/understand it. It was 25+ years ago I did some programming in a non high level scripting language. Only playing with Python for the last 10 years. So I have been reading up on the difference between #define and const on the forum. For exampel these two questions: The difference between #define and const #define versus const and other ...

3. forum.arduino.cc › t › a-basic-question-about-float-and-doubleA basic question about "float" and "double" - Arduino Forum

   forum.arduino.cc › t › a-basic-question-about-float-and-double

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   Mar 17, 2019 · Hi friends! Maybe the next question is very basic, but I don't understand deeply the meaning of variable "float". If you search the definition of variable float in webpage of Arduino: float - Arduino Reference you can see the next: "(..) Floating point numbers are not exact, and may yield strange results when compared. For example 6.0 / 3.0 may not equal 2.0. You should instead check that the ...

4. www.zhihu.com › question › 423266431请问#define PI 3.1416比float pi=3.1416有什么优势呢？ - 知乎

   www.zhihu.com › question › 423266431

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   两个都有问题····(原问题是define pi = 3.1416与int pi = 3.1416之间的比较）. 写法一：. 如果用宏，就这么写. #define PI 3.14. 这里没有等号，你那个define pi = 3.14直接玩崩，编译错误。. 宏的话相当于所有出现PI的地方都换成3.14。. 宏的话有几个点要注意. 约定俗成宏都用 ...

5. forum.arduino.cc › t › define-a-floatdefine a float - Page 2 - Programming Questions - Arduino Forum

   forum.arduino.cc › t › define-a-float

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   Jan 28, 2018 · What would be the difference between this solution and the ones suggested in #4 and #6. #define R1 984000. #define R2 472000. const float batFact = ( (1.1/1023)* ( ( (float)R1+R2)/R2)); just a few: TYPING: a hell of a lot easier because of all the typing machinations you need to sort using macros, as you learnt.

6. forum.arduino.cc › t › using-define-for-math-functionUsing #define for math function - Arduino Forum

   forum.arduino.cc › t › using-define-for-math-function

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   Mar 5, 2014 · #define rise 32450 #define run 400 #define slope (rise/run) That is the same as: #define slope(32450/400) The compiler replaces the text and after that the compiler starts compiling the source code. If you want to make the compiler use float, use 32450.0 and 400.0

7. forum.arduino.cc › t › understanding-32-bit-floating-pointUnderstanding 32-Bit Floating Point Number ... - Arduino Forum

   forum.arduino.cc › t › understanding-32-bit-floating-point

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   Jan 13, 2021 · Let us start with the following floating point number: float y = 75.12345678; A floating point number has two parts: integer part (75) and fractional part (.12345678). 1. In programming, the keyword "float" is used to declare a floating point number. Here, the "data type" is float. 2. After the declaration of a floating point number (for example: float y = 75.12345678;), a 32-bit binary number ...

8. forum.arduino.cc › t › when-to-use-const-int-int-or-defineWhen to use const int, int, or #define - Arduino Forum

   forum.arduino.cc › t › when-to-use-const-int-int-or-define

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   Jul 30, 2020 · I use const int to define an integer variable that is not allowed to change. It can catch some types of programming errors or typos. The maximum positive value of an "int" depends on the compiler. Most often, an int is two bytes (32767 max) or four bytes (>2 billion max).

9. forum.arduino.cc › t › solved-float-byte-order-endianess[SOLVED] float, byte-order, endianess - Arduino Forum

   forum.arduino.cc › t › solved-float-byte-order-endianess

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   Nov 17, 2013 · Dear All, I need to transmit floats through an RS-485 connection. I have to send the float in the IEEE754 format as four bytes: byte 1: SEEEEEEE byte 2: EMMMMMMM byte 3: MMMMMMMM byte 4: MMMMMMMM With: S = sign bit E = exponant bits M = Mantissa bits The code is expected to run on ATmega32u4 (Leonardo), ATmega328 (Uno), ATmega328P (Duemilanove), Atmel SAM3X8E ARM Cortex-M3 (Due ...

10. forum.arduino.cc › t › nrf24l01-sending-float-valuesnRF24L01 sending float values - Arduino Forum

    forum.arduino.cc › t › nrf24l01-sending-float-values

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    Jan 21, 2024 · UKHeliBob January 21, 2024, 10:22pm 2. ggregg: Can I send float structure via nRF24L01 module? Yes you can as long as the total number of bytes does not exceed 32. Which Arduino board are you using ? Please post both sketches, using code tags when you do. ggregg January 21, 2024, 11:20pm 3.

11. forum.arduino.cc › t › passing-float-values-with-bluetoothPassing float values with Bluetooth - Arduino Forum

    forum.arduino.cc › t › passing-float-values-with-bluetooth

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    May 24, 2020 · To convert these 4 byte values back to float again you can use this code: I was able to transmit the 6DOF (x-y-z accel and gyro) float values using this method without problem. gerrikoio: The only way you can send multiple values at a time is through a byte array. You could also simply have multiple characteristics.