how to make function on this program?

[devaeron]

i have a big problem i think..
can anyone please teach me about how to input a function on this program?

#include<iostream.h>
float input(int i,int j)
{
float a;
cout<<"Element in row : "<<i+1<<" and column "<<j+1<<" ";
cin>>a;
return a;
}


float m1[30][30],m2[30][30],mtimes[30][30];



float calculate(float total,int i,int j,int b)
{
for (int z=0;z<b;z++)
{
total+=m1[i][z]*m2[z][j];
}
return total;
}

void main()
{
int a,b,c,d,i,j,z;

cout<<"This program counts the result of M1 * M2\n\n";
cout<<"What size do you want for matrix 1?";cin>>a;cin>>b;
cout<<"Input matrix 1 M1 : \n";
for (i=0;i<a;i++)
{
for (j=0;j<b;j++)
m1[i][j]=input(i,j);
}
cout<<"\n\nWhat size do you want for matrix 2?";cin>>d;cin>>c;
while (d!=b)
{
cout<<"those size aren't correct\n";
cout<<"\n\nWhat size do you want for matrix 2?";cin>>d;cin>>c;
cout<<"Now, for the matrix 2 M2 : \n";
}
d=b;
for (i=0;i<b;i++)
{
for (j=0;j<c;j++)
m2[i][j]=input(i,j);
}
for (i=0;i<a;i++)
{
for (j=0;j<c;j++)
{
mtimes[i][j]=0;
}
cout<<endl;
}
for (i=0;i<a;i++)
{
for (j=0;j<c;j++)mtimes[i][j]=calculate(0.0,i,j,b);
}
for (i=0;i<a;i++)
{
for (j=0;j<c;j++)
{
cout<<mtimes[i][j]<<'\t';
}
cout<<endl;
}
}

any suggestion for inputing a function on this program?
Thanks a lot for any suggest...

[AHUazhu]

could you tell me what do you want to do with this prog?

[gen1mx6]

sorry don't know what your asking...do you want to get input from a function? or just put a function in your code?


you should use the code tags to make your code more readable.. its the the # on the right

#include<iostream.h>
	float input(int i,int j)
	{
		float a;
		cout<<"Element in row : "<<i+1<<" and column "<<j+1<<" ";
		cin>>a;
		return a;
	}


	float m1[30][30],m2[30][30],mtimes[30][30];



	float calculate(float total,int i,int j,int b)
	{
		for (int z=0;z<b;z++)
		{
			total+=m1[i][z]*m2[z][j];
		}
		return total;
	}

	void main()
	{
		int a,b,c,d,i,j,z;

		cout<<"This program counts the result of M1 * M2\n\n";
		cout<<"What size do you want for matrix 1?";cin>>a;cin>>b;
		cout<<"Input matrix 1 M1 : \n";
		for (i=0;i<a;i++)
		{
			for (j=0;j<b;j++)
				m1[i][j]=input(i,j);
		}
		cout<<"\n\nWhat size do you want for matrix 2?";cin>>d;cin>>c;
		while (d!=b)
		{
			cout<<"those size aren't correct\n";
			cout<<"\n\nWhat size do you want for matrix 2?";cin>>d;cin>>c;
			cout<<"Now, for the matrix 2 M2 : \n";
		}
		d=b;
		for (i=0;i<b;i++)
		{
			for (j=0;j<c;j++)
				m2[i][j]=input(i,j);
		}
		for (i=0;i<a;i++)
		{
			for (j=0;j<c;j++)
			{
				mtimes[i][j]=0;
			}
			cout<<endl;
		}
		for (i=0;i<a;i++)
		{
			for (j=0;j<c;j++)mtimes[i][j]=calculate(0.0,i,j,b);
		}
		for (i=0;i<a;i++)
		{
			for (j=0;j<c;j++)
			{
				cout<<mtimes[i][j]<<'\t';
			}
			cout<<endl;
		}
	}

[Mythios]

I == Lost

[devaeron]

sorry for the inconvenience...
what i want to do is i want to input function on the program, any function will do.. thanks for the replay...
and one more thing, i have a question about binary conversion
Operation Remainder
118 ÷ 2 = 59 0
59 ÷ 2 = 29 1 why is this 29 and,
29 ÷ 2 = 14 1 why is this 14?
14 ÷ 2 = 7 0
7 ÷ 2 = 3 1
3 ÷ 2 = 1 1
1 ÷ 2 = 0 1


i've got this from wikipedia on binary numeral system pages...
thanks again for the replay...

[devaeron]

another question, are DD and D13 are same in hexadecimal?
thanks

[helios]

I don't really understand what you're asking. "Input a function"? You have already defined some functions in your previous code, why are you asking this?
Rephrase your question.

59÷2=29 because that's an integer division. The number next to it (1) is the remainder. 29*2+1=59.

DD(16)=221(10)
D13(16)=3347(10)

[devaeron]

okay... thanks about the function and the binary,

o, isee... so
DD binary's code is 1101 1101(2) and,
D13 binary's code is 1101 0001 0011(2)
am i correct?