approximate value

简明释义

近似值

英英释义

例句

1.To estimate the time required, we can use an approximate value from previous projects.

为了估算所需时间，我们可以使用以前项目中的近似值。

2.The scientist reported an approximate value for the temperature based on preliminary data.

科学家根据初步数据报告了温度的近似值。

3.The app provides an approximate value of calories burned during exercise.

该应用程序提供了锻炼期间消耗卡路里的近似值。

4.In the budget report, we need to provide an approximate value for the project costs.

在预算报告中，我们需要提供项目成本的近似值。

5.The engineer calculated the approximate value of the bridge's load capacity to ensure safety.

工程师计算了桥梁承载能力的近似值以确保安全。

作文

In mathematics and science, the concept of an approximate value is crucial for understanding measurements and calculations that cannot be determined with absolute precision. An approximate value refers to a number that is close to the actual value but not exact. This concept is particularly important in fields such as physics, engineering, and statistics, where exact measurements are often impossible due to limitations in technology or the inherent variability of the phenomena being studied. For instance, when measuring the length of a table, one might use a ruler that only measures in centimeters. If the table measures 2.5 meters, the approximate value could be reported as 250 centimeters. While this conversion is accurate, it is still an approximation because slight variations in measurement can occur depending on the method used or the person taking the measurement. In this case, the approximate value helps communicate the size of the table without needing to convey every minute detail that could lead to confusion. In scientific research, using approximate values is essential when dealing with large datasets or complex equations. For example, when scientists calculate the speed of light, they often use an approximate value of 299,792 kilometers per second. This value is rounded for simplicity, allowing researchers to work with a manageable number while still conveying the necessary information. The approximate value provides a basis for further calculations, experiments, and theories. Moreover, the use of approximate values is common in everyday life. When cooking, a recipe may call for 'about' a cup of sugar, indicating that an approximate value is sufficient for the dish. This flexibility allows for personal taste preferences and ingredient availability, making cooking more accessible and enjoyable. In this context, the approximate value serves as a guideline rather than a strict rule, demonstrating how approximations can enhance creativity and adaptability. However, it is important to recognize the limitations of approximate values. In some situations, relying too heavily on approximations can lead to significant errors. For instance, in financial calculations, an approximate value may result in incorrect budgeting or forecasting if not handled carefully. Therefore, it is essential to balance the need for simplicity with the necessity of accuracy, especially in critical areas like finance or healthcare. In conclusion, understanding the role of approximate values is vital across various disciplines. They allow for easier communication of information, facilitate calculations, and provide flexibility in practical applications. However, it is equally important to be aware of their limitations and to ensure that the use of approximate values does not compromise the integrity of the data or the outcomes of any analysis. By mastering the concept of approximate values, individuals can enhance their analytical skills and make more informed decisions in both academic and everyday contexts.

在数学和科学中，近似值的概念对于理解无法精确确定的测量和计算至关重要。近似值是指接近实际值但不精确的数字。这个概念在物理学、工程学和统计学等领域尤其重要，因为由于技术限制或研究现象固有的变异性，确切的测量往往是不可能的。例如，当测量一张桌子的长度时，可能使用只能以厘米为单位测量的尺子。如果桌子的长度为2.5米，则近似值可以报告为250厘米。虽然这个转换是准确的，但它仍然是一个近似，因为根据所使用的方法或测量的人，测量中可能会发生轻微的变化。在这种情况下，近似值帮助传达桌子的大小，而无需传达可能导致混淆的每一个细节。在科学研究中，当处理大型数据集或复杂方程时，使用近似值是必不可少的。例如，当科学家计算光速时，他们通常使用约299,792公里每秒的近似值。这个值被四舍五入以简化，使研究人员能够使用可管理的数字，同时仍然传达必要的信息。近似值为进一步的计算、实验和理论提供了基础。此外，近似值的使用在日常生活中也很常见。当烹饪时，食谱可能会要求“约”一杯糖，表明近似值对于菜肴是足够的。这种灵活性允许个人口味偏好和食材的可用性，使烹饪变得更加容易和愉快。在这种情况下，近似值作为指导而不是严格的规则，展示了近似如何增强创造力和适应能力。然而，重要的是要认识到近似值的局限性。在某些情况下，过于依赖近似可能导致重大错误。例如，在财务计算中，如果处理不当，近似值可能导致预算或预测不正确。因此，平衡简单性与准确性的需求是至关重要的，特别是在财务或医疗等关键领域。总之，理解近似值的作用在各个学科中都是至关重要的。它们使信息的交流更容易，促进计算，并在实际应用中提供灵活性。然而，同样重要的是要意识到它们的局限性，确保近似值的使用不会损害数据的完整性或任何分析的结果。通过掌握近似值的概念，个人可以增强他们的分析技能，并在学术和日常环境中做出更明智的决策。