how can I write pow(x,y) and fabs(x) and abs(x)

[fiko]

I must not using include<cmath>

how can I write pow(x,y) and fabs(x) and abs(x)

[ajh32]

Well what do you expect each function to do?

[fiko]

for example;

double sin(double x) //sin function
{return x-((x*x*x)/6.)+((x*x*x*x*x)/120.);}

double cos(double y) //cos function
{return 1-((x*x)/2.)+((x*x*x*x)/24.)-((x*x*x*x*x*x)/720.);}

[ajh32]

Of you go then, write the code to do what you want it to do...

[fiko]

help me please I made all function but I didn'T make pow(x) and fabs(x) and abs(x) how can I write???

[o1vk4iN6]

if( x < 0 ) return -x; else return x;

[ajh32]

Have you written any C or C++ code before?

[fiko]

c++ kullanıyorum teşekkürler