Thread: Math problem in C

Code:

 for(x=1;x<=day;x++){
age=99(log((max(x,hieght)+a)/7);
}

that is my code ....and here is what i am trying to do


computing a luck factor, as this is the formula
99(log(max(the sumation of x=1 as it reaches day)x,hieght)+a/7;

now thats probably confusing, so basically its asking for the max of when x reaches a specific of either x or hieght i take it.

Either way my code is faulty, that for loop just wont complie right, any help would be great

Assuming that max() is a function or a macro that takes two arguments .....

Code:

for(x=1;x<=day;x++){
age=99*(log((max(x,hieght)+a)/7);
}

One thing to watch is that log() is a math function which takes a double as argument. If all of your variables are of integral type you would need to convert something to double to allow it to work. For example;
[code]

Code:

/* provide an macro that implements max() for discussions sake */
#define max(a,b) ((a)<(b) ? (b) : (a))

int x, age, hieght, a;
for(x=1;x<=day;x++){
age=(int)(99*(log((max(x,hieght)+(double)a)/7));
}

Originally Posted by airj56

yea, just starting C....use to java where i can do that ............

Java doesn't allow that either, except in regular expressions (which are strings that are worked on by a library function).

alright, well i dont want to sound like an idiot, but like u said something about that max function, i have to define it or something? THats my only other error

thanks for all ur replys