生活中的数学知识有哪些？英文双语对照

生活中的数学知识有哪些？

生活中有许多数学知识，以下是一些常见的数学知识和应用：

1.计算：生活中有许多计算，如购物时计算价格、做菜时计算配料、工作中计算时间和成本等。

2.比例：比例是生活中常见的数学概念，如食谱中的配料比例、地图上的比例尺、商业广告中的折扣比例等。

3.百分数：百分数也是生活中常见的数学概念，如折扣、利率、税率等都是以百分数的形式表示的。

4.几何：几何是研究空间形状和大小关系的数学学科，例如在家居装修中需要测量房间大小、选择家具尺寸等。

5.统计学：统计学是研究数据收集、分析和解释的数学学科，例如在市场调查、社会调查等领域中需要用到统计学知识。

总之，数学在我们的日常生活中扮演着重要的角色。了解数学知识不仅可以帮助我们更好地理解世界，还可以帮助我们更好地应对生活中的各种问题。

用圆的知识解释井盖为什么要做成圆的？

圆形受力最均匀，可以更好的将压力均匀传递到整个下水盖的四周，使其本身四周及其所接触的地面均匀承重。

而且有时候人要下去抢修、清堵，相同周长的情况下，圆的面积是最大的，人下去方便。

为什么是圆的?用圆的知识解释？

因为水在水面上是各向同性的，水滴产生的机械振动向四面传播开的速度相同，波传播方向上的的同相位面是圆环形，这就是人看到的圆形的水波纹。

水波很容易被认为是一种横波，实际上并非如此。在平衡的情况下，水的表面是水平的。

水面发生扰动时，使水面恢复水平的回复力有两个，一个是重力，另一个是表面张力。

水波中，对水面质点提供的回复力在波长很小时，表面张力的作用是主要的，这种波叫做表面张力波。

对于波长很长很长的波，表面张力的作用可以忽略，波动主要是重力作用的结果，这种波叫做重力波。扩展资料各向同性指物体的物理、化学等方面的性质不会因方向的不同而有所变化的特性，即某一物体在不同的方向所测得的性能数值完全相同，亦称均质性。物理性质不随量度方向变化的特性。即沿物体不同方向所测得的性能，显示出同样的数值。

如所有的气体、液体（液晶除外）以及非晶质物体都显示各向同性。

波是指振动的传播。

电磁振动的传播是电磁波。

为直观起见，以绳子抖动这种最简单的为例，在绳子的一端有一个上下振动的振源，振动沿绳向前传播。

从整体看波峰和波谷不断向前运动，而绳子的质点只做上下运动并没有向前运动。

What does the mathematical knowledge in the life have?

There are a lot of maths knowledges in the life, it is a few common maths knowledge and application below:

1. computation: There are a lot of considerations in the life, time of the computation in calculating burden, job like the price of the computation when shopping, chronometer that make food and cost.

2. scale: Scale is the common mathematical concept in the life, the discount scale in advertisement of the scale on the burden scale in be like cookbook, map, trade.

3. percentage: Percentage also is the common mathematical concept in the life, be like discount, interest rate, tax rate to wait is the form with percentage denotive.

4. geometry: Geometry is research space appearance and the mathematical course that size concerns, reside the need in decorating to measure dimension of furniture of room size, choice to wait in the home for example.

5. is statistical: Statistical it is to study data is collected, the mathematical course of analysis and explanation, need to use statistical knowledge in the domain such as investigation of market research, society for example.

Anyhow, maths is acting important role in our daily life. Understanding maths knowledge can help us understand the world better not only, still can help us answer all sorts of questions in the life better.

Why to explain with round knowledge well lid wants make it circle?

The circle gets power the evenest, can better transfer pressure equably whole enter the water of the lid all around, make its itself all around the floor that reachs its place contact bearings equably.

And occasionally the person should go down rush to repair, Qing Dynasty is blocked up, below the circumstance of identical circumference, round area is the biggest, the person goes down to go to the lavatory.

Why be round? With round intellectual explanation?

Because water is in be isotropy on surface, the rate that the mechanical vibration that water produces transmits to all sides is same, on wave transmission way be the same as phasic face is cirque form, this is the water ripple of the circle that the person sees.

Shui Bo is considered as a kind of transverse wave very easily, be not actually such. Below the circumstance of the balance, the surface of water is a level.

When surface happening disturbs, the reply force that makes surface regains a level has two, one is gravitational, another is exterior tension.

In Shui Bo, the reply power that provides to surface particle is in wavelengh very hour, the action of exterior tension is main, this kind of wave calls the surface tensional wave.

Very long to wavelengh very long wave, the action of exterior tension is negligible, wave motion basically is the result of gravitational action, this kind of wave is called gravitational wave. The property of the respect such as the physics that expands data isotropy points to an object, chemistry won't the differ and changes somewhat character because of direction, namely the property numerical value that some object measures in different directional place is identical, also say to all pledge quality. Physical property does not follow the character that measurement direction changes. Differ along the object namely the performance that directional place measures, show same numerical value.

Like all gas, liquid (liquid crystal except) and noncrystalline object shows isotropy.

Wave it is the transmission that points to vibration.

The transmission of electromagnetism vibration is electromagnetic wave.

For intuitionistic for the purpose of, shake with cord this kind the simplest for exemple, there is the Zhen Yuan of vibration of a fluctuation in the one aspect of the matter of cord, oscillatory edge rope travels ahead.

See wave crest and trough move ahead ceaselessly from whole, and the particle of cord does fluctuation to move only and did not move ahead.