floating point comparison

Comprehensive Analysis of Mitsubishi PLC Comparison Instructions! Precise Control from Temperature Thresholds to Recipe Ranges

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1. Classification System of Comparison Instructions 1. Single Value Comparison Instructions CMP 16-bit single value comparison Temperature Over Limit Alarm DCMP 32-bit single value comparison Production Target Value Comparison ZCP Range Comparison Pressure Normal Range Detection 2. Data Processing Instructions MEAN Average Value Calculation Remove Sensor Noise MAX Maximum Value Detection Device Performance Monitoring MIN … Read more

Division and Floating Point Numbers in Python

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Floating Point Numbers In Python, floating point numbers (decimals) are used to represent numbers instead of integers. Some examples of numbers are represented as 0.5 and -7.8237591. They can be created directly by entering numbers with a decimal point or by using operations like integer division. Computers cannot store floating point numbers (decimals) with complete … Read more

2.1 Basic Built-in Types (C++ Primer)

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Data types are the foundation of programming: they tell us the meaning of data and the operations we can perform on it.C++ supports a wide range of data types. It defines several basic built-in types (such as characters, integers, floating-point types, etc.) and also provides mechanisms for programmers to create custom data types. 1. Classification … Read more

Is There a Pitfall in C Language Floating Point ‘Rounding’? Unveiling the ‘Banker’s Rounding’ You Didn’t Know!

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Is There a Pitfall in C Language Floating Point 'Rounding'? Unveiling the 'Banker's Rounding' You Didn't Know!

“Rounding, what’s so difficult about it?” When you hear this term, do you immediately think of your elementary school textbooks? However, in computing, especially when dealing with floating-point numbers, things are far from simple. When we mention rounding of floating-point numbers, we often refer not to the most common “round half up” that we encounter … Read more

In-Depth Analysis of Floating Point Numbers in C: Understanding Overflow and Underflow

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In-Depth Analysis of Floating Point Numbers in C: Understanding Overflow and Underflow

Today, we will discuss a concept that is very important yet often overlooked in the use of floating point numbers (float) in C language—overflow and underflow. Do you remember the integer overflow phenomenon we encountered when discussing integer types? When a value exceeds the range that its type can express, it may “wrap around” to … Read more

Floating Point Number Transmission Between Robots and PLCs

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Floating Point Number Transmission Between Robots and PLCs

HELLO everyone, a few days ago someone asked if Profinet can transmit floating point numbers? Today, let’s talk about how robots send and receive floating point numbers. If you already know how to do it, please take a look at my implementation and see how it differs from yours. Quick Navigation: 1 What is a … Read more

Practical Guide to PLC Data Type Conversion: The Secret from Temperature Anomalies to Precise Control

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Practical Guide to PLC Data Type Conversion: The Secret from Temperature Anomalies to Precise Control

Click the top to follow us! Introduction: Why do temperature sensors always “lie”? A food factory’s constant temperature furnace clearly displays 25.7℃ on the screen, but when maintenance personnel measure it with an infrared thermometer, the actual temperature has soared to 30℃—such “digital lies” are not uncommon in industrial sites. When the production line is … Read more

C++ Learning Notes 3

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C++ Learning Notes 3

Data Types:C++ requires that when creating a variable or constant, the corresponding data type must be specified; otherwise, memory cannot be allocated for the variable.The significance of data types: to allocate appropriate memory space for variables.Integer Types:Function: Integer variables represent integer data types.In C++, the following types can represent integers,with differences in the memory space … Read more

C Language Experience Discussion (Part 6): Floating Point Equality Check, Why 0.1 + 0.2 ≠ 0.3

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C Language Experience Discussion (Part 6): Floating Point Equality Check, Why 0.1 + 0.2 ≠ 0.3

C Language Experience Discussion (Part 6): Floating Point Equality Check, Why 0.1 + 0.2 ≠ 0.3? 📌 Application Scenarios and Issues Floating point numbers in computers use the IEEE 754 standard for binary representation, but many decimal fractions cannot be precisely represented as binary floating point numbers. This leads to seemingly simple floating point operations … Read more

C Language Learning Notes 100 Articles: 19. Relational Operators – Comparing Values is Simple, but Beware of These Errors!

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C Language Learning Notes 100 Articles: 19. Relational Operators - Comparing Values is Simple, but Beware of These Errors!

“From today on, study hard and make progress every day” Repetition is the best method for memory; spend one minute each day to remember the basics of C language. “C Language Beginner’s Essential Knowledge Notes Series of 100 Articles”“ 19. Relational Operators – Comparing Values is Simple, but Beware of These Errors! 1. Basic Concept … Read more