# <b>TRIGONOMETRIC FUNCTION GRAPHING</b>

• December 1st, 2012, 11:00 PM
XNEE2
<b>TRIGONOMETRIC FUNCTION GRAPHING</b>
<h3>Please help me to program a code that will plot (graph) COMPLEX TRIGONOMETRIC FUNCTIONS recognizing the input from the user as string
• December 1st, 2012, 11:06 PM
curmudgeon
Re: <b>TRIGONOMETRIC FUNCTION GRAPHING</b>
You first.

Please show us what you've tried and what problems you may be having with it.
• December 1st, 2012, 11:06 PM
jps
Re: <b>TRIGONOMETRIC FUNCTION GRAPHING</b>
Quote:

Sure thing. What do you need help with?
Generally speaking if you need help, then you have a problem to solve. What is the problem and what is your problem with the problem?
• December 2nd, 2012, 12:00 AM
curmudgeon
Re: <b>TRIGONOMETRIC FUNCTION GRAPHING</b>
I'm deleting your second thread. Please do not ask folks here to "mail me" a solution. This is not a "do my homework for me site".

--- Update ---

I have received this private message from the original poster which for his benefit I am posting here:

Quote:

i m new for java,my java skill is not that good and this is all i've done yet,and no idea what to do next

Code :

```import java.util.Scanner; import java.util.Stack;   class Tokenizer { private String inputc; private String med = "";   public void tokenize (String a){ inputc = a; int c=0; int c1=0; for(int i=0;i < inputc.length();i++) { if(inputc.charAt(i)=='(') c++; else if(inputc.charAt(i)==')') c1++; } if(c!=c1) { System.out.println("This is incorrect string, please check your input"); } else { String str = ""; String[] fun={"sin","cos","tan","cosec","sec","cot"};   Stack<String> stack = new Stack<String>(); Stack<String> stack1 = new Stack<String>();   for (int i = 0; i < inputc.length(); i++){ str = inputc.substring(i,i+1); if(str.matches("fun")) { med = str; stack1.push(med); } else if (foundOperator(str)){ if (stack.isEmpty()){ stack1.push(str); } else{ String stackTop = stack.peek(); while (getPrecedence(stackTop,str).equals(stackTop) && !(stack.isEmpty())){ med = stack.pop(); stack1.push(med); if (!(stack.isEmpty())) stackTop = stack.peek(); } stack1.push(str); } } } while(!(stack.isEmpty())) { med = stack.pop(); stack1.push(med); } while (!stack1.isEmpty()) { System.out.print(stack1.peek() + " "); stack1.pop(); }   }   private boolean foundOperator(String ch){ String operators = "*/%+-"; if (operators.indexOf(ch) != -1) return true; else return false; }   private String getPrecedence(String op1, String op2){ String multiplicativeOps = "*/%"; String additiveOps = "+-"; if ((multiplicativeOps.indexOf(op1) != -1) && (additiveOps.indexOf(op2) != -1)) return op1; else if ((multiplicativeOps.indexOf(op2) != -1) && (additiveOps.indexOf(op1) != -1)) return op2; else if((multiplicativeOps.indexOf(op1) != -1) && (multiplicativeOps.indexOf (op2) != -1)) return op1; else return op1; }   } }   class Complex_Trigonometry   { public static void main(String[] args) {   System.out.println("Enter the trigonometric function which is to be plotted:-"); Scanner scanner = new Scanner(System.in);   String input = scanner.nextLine(); Tokenizer t = new Tokenizer();   t.tokenize(input); }     }```