It is about the weight and length of axe, mace, flail, hammer, and sword.

1. use middle age senario, let us say, A.D.1300, in Paris.

2. design for two different people: A) male, 1.9m. B) female,1.75m. Their BMI are nomal, strong and health.

3. axe, mace, flail, hammer, and swrod are made by same metal and only metal.

Questions:

1. the suitalbe weight and length of axe, mace, flail, hammer, and sword for male.

2. for female.

3. if all are made in same length, say, 2m for two hand use, what are their weight by using 1300 technology ?

4. what if for one hand use? say, in 0.9m, what will the 5 different weight be?

5. which metal will be used in 1300? what is the heaviest metal in middle age Europe?

6. will the density same in all parts of the weapon? or some parts will be heavier for balance? or just modify the shape to adjust the balance?

waiting for English answers, please do not make me read non-English texts.

If you read all the related features articles here on myArmoury (http://www.myArmoury.com/features.html) you will be able to get a real good idea concerning your questions... and they are all in English.
You will figure out that your questions may have been phrased a tad too simple.
Nr. 5 is pretty easy though: lead. But i don't recommend it in blades ;)

I'd say gold. though the same applies.

Yes, of course you are right. Stupid me... :\

come on. i work 96 hours a week.

please tell me which article i should read or just provide me the formula.

There is no such thing as a formula for your questions.
Every sword is different. That goes for lower quality blades as well a high quality ones made with a specific user in mind.

These articles may help you along the way:

MyArmourys own beginners guide:
http://www.myArmoury.com/feature_swordintro1.html

A nice artcile about blade hardness:
http://www.myArmoury.com/feature_bladehardness.html

Geibigs sword typology (in short):
http://www.myArmoury.com/feature_geibig.html

For your obvious interest in huge swords around 1300 Oakeshotts Type XIII should be about right:
http://www.myArmoury.com/feature_spotxiii.html

If you want to compare some modern replicas, take a look a this tool:
http://www.myArmoury.com/compare.html

You are good guys.

I am looking for the reliabel relationship between weigts and lengths of said 4 non-sword weapons.

And I found it very difficult to find the data.

Axe, Flail, Hammer, Mace