Wind Chill Assignment!

n00brammer

Hey guys I am completely new to programming and I have been running into some issues so I finally decided to come here for help! So, I have an assignment where I simply need to calculate Wind Chill with the formula and add in variables of whatever number I choose which are T=Temperature and V= Wind Velocity in mph I am not sure exactly how to have processing carry out my formula and actually give me the exact calculation of what it needs to be! I have tried using String but it does not seem to carry out the work i expected! If I could get someone to assist me I would be very grateful! :)

n00brammer

oh and here is what I have so far!

//variables for tempertature and wind speed
int T= 20;
int V= 25;

//formula for wind chill
String F="Wind Chill=35.74+0.6215*T-35.75pow(V,0.16)+";
String W="0.4275*Tpow(V,0.16)";
String S= F+W;


void setup()
{
  size(wide,high);
  background(0,0,100);
  noStroke();
  fill(102);
  PFont font;
  font= loadFont("Chiller-Regular-48.vlw");
  textFont(font,100);
  fill(255,255,255);
  text(S,0,250);
  println(S);
}

[mod edit: code formatted]

GoToLoop

http://forum.Processing.org/two/discussion/8045/how-to-format-code-and-text

n00brammer

    //Wind Chill Project

    //variables for tempertature and wind speed
    int T= 20;
    int V= 25;

    //formula for wind chill
    String F="Wind Chill=35.74+0.6215*T-35.75pow(V,0.16)+";
    String W="0.4275*Tpow(V,0.16)";
    String S= F+W;


    void setup()
    {
      size(wide,high);
    background(0,0,100);
    noStroke();
    fill(102);
    PFont font;
    font= loadFont("Chiller-Regular-48.vlw");
    textFont(font,100);
    fill(255,255,255);
    text(S,0,250);

    println(S);

    }

n00brammer

Thanks GoToLoop, I was not sure why it was coming out in such a jumbled mess..

GoToLoop

String datatype is for displaying & manipulating texts, not for Math:

• https://Processing.org/reference/String.html

That is, unless you wanna rely on some script language in order to eval() them as programming statements:

• http://forum.Processing.org/two/discussion/7147/some-simple-pulse-equations-using-trig

But I strongly advise you to use instead regular primitive number types like int & float:

• https://Processing.org/reference/int.html
• https://Processing.org/reference/float.html

blyk

First of all, Mathematical operation can be used only with int or float. It cannot be used with the strings.

If you use plus operator to add two string, it will just concatenate your strings.

Example -

    String B = "Blyk";
    String C = "Code";
    String S = B + C;
    println(B);  //  it will print -- > Blyk
    println(C);  //  it will print -- > Code
    println(S);  //  it will print -- > Blyk Code

Your corrected code.

    int T= 20;
    int V= 25;
    float Wind_Chill;
    float W ;
    void setup()
    {
      size(150, 150);
      Wind_Chill = 35.74+0.6125*T-35.75*pow(V, 0.16);
      W = 0.4275*T*pow(V, 0.16); 
      println("Wind Chill + W = ", Wind_Chill + W);
    }

n00brammer

Thank you guys, I wasn't expecting anyone to help this much honestly I appreciate the critique from both of you guys! I'm still very new to this and need a lot more practice of understanding how everything works!

Danny23777

Nice this is a life saver but I just need "T" & "V" not W but when I take the W out it seems to work fine.=) Awesome that helps me convert windchill to code. Blyk I have the same question on my page if you would like to put that same answer in my question to help the viewers on my question to know the answer as well. Thanks a lot man!