Influencing factors of computational power
among them, floating-point computing is one of them
floating-point computing power has a lot to do with the first level cache
for example,
amd
CPU's floating-point computing power is much higher than inter
dominant frequency is a very important point, but not all
if dominant frequency decides everything, AMD will declare bankruptcy
but Inter is afraid of AMD
amd 2600 + uses super -- pi to measure The result of the test is comparable to the speed of p43.0, but the main frequency of 2600 + is only 1.8g
but the CPU of the same architecture and cache is determined by the main frequency
it can tell you an undeniable fact that the CPU of
p3-866
is faster than that of P4 Celeron 1.8g
also playing online games, mobile phones with higher computing power are more fluent, and those with less computing power will get stuck
if you want a mobile phone to have higher computing power and play games without jamming, you need not only more core and higher frequency CPU, but also more memory and more stable and fast network
therefore, network, storage and computing power are the three main factors that determine the computing power of mobile phones. You can go to the tenth power computing platform to learn more about computing power and get free computing power.
Computer calculators are basically used to solve calculation problems,
obviously become more and more lazy,
and I feel that I can get my calculation ability through more practice,
after I am familiar with calculation methods and engineering,
my calculation ability has been improved
through the analysis and Research on the types and causes of errors in written calculation of students in different grades in our school,
can correct the errors in written calculation of students,
but e to the differences in cognitive development level and existing knowledge and experience of students,
written calculation errors are also different< According to the collected survey materials,
students' written calculation errors can be roughly divided into two categories: knowledge errors and non knowledge errors
knowledge errors refer to the errors caused by students' incomprehension of
rules, calculation principles, concepts and operation order of pen algorithm, or their failure to master the learned knowledge
non knowledge errors refer to the errors caused by students' bad study habits. We can't help asking:
"
rough
careless
"
what is the reason<
through the investigation and Research on students' computing ability,
carefully analyzes the causes of students' computing errors< The results show that there are many reasons for students' miscalculation, and the main reason is that students have various mental obstacles in calculation<
first, the perception is rough
when students calculate, they perceive things more general,
rough,
often perceive similar data or symbols
distortion, resulting in errors<
Second, fixed thinking method
fixed thinking method has both positive and negative effects in calculation. When students master a certain calculation method, they tend to use similar old methods to think about problems,
this will inevitably lead to laziness of thinking,
affect the speed of calculation< At the same time, e to the repeated practice of a certain type of exercises,
make students first
into the main, middle school students often use the habitual method to solve completely different problems, thus making mistakes<
Third, memory restoration
in the process of storing information,
e to the influence of time,
amount of review and many other factors,
makes the stored
information disappear or interrupt, resulting in
"
"
"
". For example: especially for the calculation problems of continuous addition, continuous subtraction, carry addition, abdication
subtraction, multiplication and division, the amount of instant memory is large. In addition, the simplification of
to
, is e to the incomplete or forgotten storage and extraction of information< Fourth, the representation is fuzzy. Representation is the bridge from perception to thinking
in terms of operation form,
students' calculation is from perception to representation and then to abstract< From the perspective of thinking characteristics of primary school students,
their thinking is specific and imaginative,
imagery often becomes the basis of their thinking< 5. Strong information interference
students' audio-visual perception is selective,
the degree of information they receive affects their thinking
when calculating, some strong information is easy to come to the eye and cover up other information<
VI.
"
"
"
thoughts and boredom
when calculating, students all hope to calculate the results quickly. Some students are eager for success when doing the calculation problems, and make some inexplicable mistakes. First, when the number is small and the formula is simple, it is easy to proce
"
"
"
"
thoughts; Second, when the number is large and the calculation is complex, impatience and boredom appear. As a result, they often have bad habits such as writing in a hurry before they can see clearly, and not checking after they have finished< There are many ways to solve problems, which requires us to be good at choosing the best
the students with poor computational ability are obviously lack of comparative consciousness,
lack of consciousness of strategy evaluation,
when doing questions, they often find a way to do it, even if it is cumbersome, they don't care. They are satisfied if they think it is right, and seldom consider whether there are other good methods?
Generally speaking, the computing power is affected not only by the processor, but also by the chipset, memory and hard disk
from the perspective of parameters, performance
processor: model, core, main frequency, front-end bus, cache
chipset: type
memory: type and capacity
hard disk: capacity, cache, speed
it can be seen from the configuration of a laptop that the processor, chipset and memory are the key to the performance. For example, the processor model, main frequency, chipset model, memory type, capacity; We can only see the size of the capacity of the hard disk in the configuration, but we can't know the speed and cache size (except for software testing)
the strength of the overall computing performance is closely related to the balance of the configuration of the above four main components. If the processor and hard disk are compared to the two sides of a river, then the memory is the bridge connecting the two sides. For example, the wider the "bridge", the more people will pass at the same time. Therefore, large capacity memory has an absolute advantage over small capacity memory. If the "bridge" is narrow, there will be a bottleneck between the processor and the hard disk, which will affect the computational performance in actual use. Chipsets mainly support al channel memory. At present, almost all the chipsets used in commercial laptops support al channel memory, so we won't give a detailed description here
e to different batches of laptops with the same model and configuration, there will be some differences in the configuration of hard disks. These differences are shown in the speed of the hard disk, cache. The higher the speed of the hard disk and the larger the capacity of the single chip, the more data can be read per unit time

the students with weak basic knowledge in the middle and lower part of their grades are most incisive. The full score of the test paper is 150 points, 145 points, the foundation is certainly no problem; If it's less than 90, you need to take a good look
the basic knowledge is not solid, and the required mathematical concepts, theorems, formulas and some commonly used data are vague, and the formulas and rules are ambiguous<
countermeasures:
decompose the main points, key points, difficulties and knowledge points to form their own knowledge structure system, so as to make them familiar with the heart, and understand the exercises at the back of the textbook
2. Poor basic computing ability
this problem is a legacy of history. If the computing ability is average in junior high school, it will also be affected in senior one; At the same time, it has something to do with habit. As long as it's a calculation problem, some students immediately take out their calculators and crackle the problem out. In the long run, their calculation ability is low<
countermeasures:
if you want to strengthen the calculation ability, you should not immerse yourself in the sea tactics, but find some ingenious problems, do more and summarize more, and master both the problem-solving method and the calculation method, so that practice can make perfect and steady. Remember, use calculators as little as possible
3. Poor logical reasoning ability
after doing the same type of questions over and over again, it won't work if you change the question method or make a change<
countermeasures:
as long as they are willing to summarize the problem-solving skills carefully, start from the foundation, practice more, summarize more, accumulate more, and spend more time to do
4. The answers are not standardized
some students write the answers before they finish reading the questions, and the accuracy can be imagined
for example, the writing of fractional expression is not standardized, the writing of general term and function expression is not standardized,
the writing of analytic expression of function is correct but the definition field is not indicated,
the result written as a set is not required to be represented by a set,
the object attribute description of set is inaccurate<
countermeasures:
be serious and careful when doing questions! In practice, the topic as an exam, after the calculation of scores. In this way, compared with yourself, because of the competitive psychology, you will be forced to be careful and standardized graally
5. The efficiency of doing questions before the exam is low
some students seem to be very diligent, but they can't pass the exam every time. Part of the reason is that the students' qualifications are mediocre, but some of them are really smart. Reason: not good at independent thinking, and wrong questions do not know how to summarize<
countermeasures:
usually form a good habit of summarizing and sorting. In view of the wrong questions, this paper establishes the mathematical wrong questions book, writes down the wrong reason and the correct method as well as the solution to this kind of problem
6. The speed of doing questions is not good
in every exam, some students will say: in fact, I can do all these questions, but I don't have time. The examination is fair, and the time given is reasonable. The examinee does not have time, but delays a lot of time in the front questions. The reason is that the speed of doing the questions is not good<
countermeasures:
in the big review to overcome their own problems, and then repeatedly practice to be able to do the problem speed! Fill in the blank choice and a few simple big questions, if put in the hands of students who do more basic questions, they will save more than ten minutes than other students, and the correct rate is very high, so they have more time to do the next big questions. Practice more to speed up.
Legend's most classic web version, multi player group battle, cross server competition, ice and fire battlefield, the most classic game of ten years, hero combo, 3D special effects gorgeous, quickly register to try,
& lt& lt;= Click to enter = & gt& gt;
download address: terraria Chinese version
full automatic circuit less water brush construction course
from top to bottom, a total of four steps, easy to understand
we don't support it. We should say it's too weak
tararia introction
tararia brick tutorial
novice pioneer process introction
all equipment props acquisition method
tararia game secret book
tararia online tutorial
tararia call boss method
tararia circuit introction
tararia plant planting
tararia advanced weapon synthesis
