approximation

简明释义

英[əˌprɒksɪˈmeɪʃn]美[əˌprɑːksɪˈmeɪʃn]

n. 粗略估计，近似值；类似事物，相似物；近似法

复 数 a p p r o x i m a t i o n s

英英释义

单词用法

同义词

反义词

例句

1.The problem is that the statistics aren't an objective measure of reality; they are simply a best approximation.

问题在于统计数据并不是对现实的客观衡量；它们只是一个最佳估测值。

2.It's as good an approximation as we've ever come up with on a screen, and it's why children's media researchers are so excited about the iPad's potential.

这是我们在屏幕上想出的最好的近似值，这也是为什么儿童媒体研究人员对iPad 的潜力如此兴奋。

3.He had coarsened his voice to an approximation of Cockney.

他的声音变得跟粗俗的伦敦佬差不多。

4.But an approximation can be made.

但可以计算出它的近似值。

5.But, if you fix a point, then we have linear approximation.

但是，如果你固定了一个点，就能得到线性近似。

6.So this is steady state approximation.

那么这是稳态近似。

7.And that is an approximation for partial derivative.

这就是偏导的近似值。

8.So this is approximation now.

这就是近似。

9.The scientist's approximation of the population growth was based on previous data.

科学家对人口增长的近似估计是基于之前的数据。

10.In mathematics, we often use approximations to simplify complex equations.

在数学中，我们经常使用近似值来简化复杂的方程。

11.For quick calculations, you can use an approximation instead of exact numbers.

为了快速计算，你可以使用近似值而不是精确数字。

12.The engineer provided an approximation of the project costs, which was around $10,000.

工程师提供了项目成本的近似值，大约为10,000美元。

13.Using approximations helps in making quick decisions during emergencies.

使用近似值有助于在紧急情况下做出快速决策。

作文

In the field of mathematics and science, the concept of approximation plays a crucial role in problem-solving and analysis. An approximation is essentially an estimate or a value that is close to, but not exactly equal to, a certain quantity. This idea is not only limited to numbers but also extends to various real-world applications where exact values are often unattainable due to complexity or uncertainty. For instance, when scientists conduct experiments, they may use approximations to simplify their calculations, allowing them to focus on the underlying principles rather than getting bogged down by intricate details.One common example of approximation can be found in the realm of physics. When measuring the speed of light, scientists often use the value of approximately 299,792 kilometers per second. This figure is widely accepted as an approximation because the speed of light can vary slightly depending on the medium it travels through. By using this approximation, researchers can make calculations and predictions about various phenomena, such as the behavior of light in different environments, without needing to account for every possible variation.In everyday life, we frequently rely on approximations as well. For example, when cooking, a recipe might call for 'about' a cup of sugar, which indicates that the exact measurement is not critical. The use of approximation in this context allows for flexibility and creativity in the kitchen, enabling cooks to adjust ingredients based on personal preference or availability. This practical application of approximation demonstrates its significance beyond academic settings, highlighting its relevance in our daily routines.Moreover, in the world of finance, approximation is vital for budgeting and forecasting. Financial analysts often use approximations to predict future revenues or expenses based on historical data. These approximations help businesses make informed decisions, even when precise figures are elusive. For instance, when estimating sales for the upcoming quarter, a company might rely on past trends and customer behavior to create an approximation that guides their strategy. This approach underscores the importance of approximation in navigating uncertainty and making educated guesses in the face of incomplete information.In conclusion, the concept of approximation is integral to various fields, including mathematics, science, cooking, and finance. It allows individuals and professionals to simplify complex situations, make educated estimates, and navigate uncertainties with greater ease. While exact values are often desirable, the reality is that many situations require us to rely on approximations to move forward effectively. Understanding and embracing the idea of approximation can enhance our problem-solving skills and enable us to approach challenges with a more flexible mindset. Ultimately, whether in academic pursuits or everyday tasks, the ability to utilize approximation is a valuable skill that aids in decision-making and fosters innovation.

在数学和科学领域，approximation的概念在解决问题和分析中起着至关重要的作用。approximation本质上是一个估计值或接近但不完全等于某个数量的值。这个概念不仅限于数字，还扩展到各种现实世界的应用中，在这些应用中，由于复杂性或不确定性，确切的值往往是无法获得的。例如，当科学家进行实验时，他们可能会使用approximation来简化计算，使他们能够专注于基本原理，而不是被复杂的细节所困扰。一个常见的approximation例子可以在物理学领域找到。当测量光速时，科学家们通常使用大约299,792公里每秒的值。这个数字被广泛接受为一个approximation，因为光速在不同介质中传播时可能略有变化。通过使用这个approximation，研究人员可以进行计算和预测各种现象，例如光在不同环境中的行为，而无需考虑每一个可能的变化。在日常生活中，我们也经常依赖approximation。例如，在烹饪时，食谱可能会要求“约一杯糖”，这表明确切的测量并不是关键。在这种情况下使用approximation允许厨房中的灵活性和创造力，使厨师能够根据个人偏好或可用性调整成分。这种对approximation的实际应用展示了它在学术环境之外的重要性，突显了它在我们日常生活中的相关性。此外，在金融领域，approximation对于预算和预测至关重要。金融分析师通常使用approximation来预测未来的收入或支出，基于历史数据。这些approximation帮助企业做出明智的决策，即使精确的数字难以获得。例如，在估算下个季度的销售时，一家公司可能会依赖过去的趋势和客户行为来创建一个approximation，指导他们的战略。这种方法强调了在面对不确定性时，approximation的重要性，以及在不完全信息中做出明智猜测的能力。总之，approximation的概念在多个领域中都是不可或缺的，包括数学、科学、烹饪和金融。它使个人和专业人士能够简化复杂的情况，做出有根据的估计，并更轻松地应对不确定性。虽然确切的值往往是令人向往的，但现实是许多情况需要我们依赖approximation来有效前进。理解和接受approximation的理念可以增强我们的解决问题的能力，使我们能够以更灵活的心态应对挑战。最终，无论是在学术追求还是日常任务中，利用approximation的能力都是一种宝贵的技能，有助于决策并促进创新。