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calculator --- using more than 2 operands? 19 Years Ago by server_crash … equation, or even get an equation with more than two operands? Right now, in my calculator, I can only have two… operands, and I want to have more. Right here is what … Re: calculator --- using more than 2 operands? 19 Years Ago by server_crash … knew the way I was doing would only allow two operands, but that's really all I could think of. I… error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by evansjahja Guys, I need help When I compile my code, I get [code]error: invalid operands to binary ^ (have ‘float’ and ‘double’)[/code] Here's some portion of my code: [code=c] #include <stdlib.h> #include <stdio.h> ... float freq; const float key_magic = 2 ^ (1/12); ... freq=440*(key_magic)^(atof(optarg)-49); [/code] Thanks invalid operands to binary? 13 Years Ago by tquiva …: averages.c: In function ‘tableAverage’: averages.c:104: error: invalid operands to binary + (have ‘double’ and ‘double *’) Here's my code… error in my code: invalid operands to binary + 13 Years Ago by dy/dx …. But an error occurred and it said that: "invalid operands to binary +" to the line.. [CODE]valString += tempExpName;[/CODE… error c# : operator == cannot be applied to operands of type 'System.IntPtr' and 'int 13 Years Ago by mxadam … All, I get this error operator == cannot be applied to operands of type 'System.IntPtr' and 'int' firstly I had this… Re: error c# : operator == cannot be applied to operands of type 'System.IntPtr' and 'int 13 Years Ago by Lusiphur … error is (sort of)... "operator == cannot be applied to operands of type 'System.IntPtr' and 'int'" You have defined… Types of Operands 13 Years Ago by beginner1 Can anybody little bit explain me what are different types of operands in assembly language ,I will be very THANKFUL to u guys. Invalid operands to binary * 11 Years Ago by kovacsakos I would like to make a memory allocation: `(*matrix)[i]=(int*)malloc(sizeof(int)*sz);` But I have got an error message: Invalid operands to binary * What should be the problem? Re: calculator --- using more than 2 operands? 19 Years Ago by jwenting That's the problem with your purely linear way of doing things. Create a parsetree and recursively process it from the inside out. Re: error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by Salem Like the error message says, you can only do xor on integers. Re: error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by evansjahja [QUOTE=Salem;984271]Like the error message says, you can only do xor on integers.[/QUOTE] Thank you for your response. However, is there any workaround for the problem? I don't really understand about XOR. I know that it is a Logical Operator or sort of but how do I solve this problem? Re: error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by Salem Use integers. Or tell us the problem you're really trying to solve, rather than attempting to fix your solution with one line of code. Re: error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by evansjahja [QUOTE=Salem;985950]Use integers. Or tell us the problem you're really trying to solve, rather than attempting to fix your solution with one line of code.[/QUOTE] Actually, I want to generate a sound frequency using the key number. Actually, I could use integer, but then the frequency will loss its accuracy. Check this link: [URL="http… Re: error: invalid operands to binary ^ (have â€˜floatâ€™ and â€˜doubleâ€™) 14 Years Ago by 0x69 I bet that you want to use power function instead of XOR operator, something like: [CODE] #include <math.h> float key_magic = pow(2., 1./12.); [/CODE] Re: invalid operands to binary? 13 Years Ago by BestJewSinceJC [CODE] while ( a != 0) { total += a; }[/CODE] This bit of code doesn't make sense. "a" is an array of doubles. So when you say "a", "a" is a reference/memory address. If you want to access the [I]value [/I] stored in "a" you have to change the code to something like this: [CODE] while ( a[index] != 0… Re: invalid operands to binary? 13 Years Ago by jephthah JC covered it pretty well. but let me comment on your indentation. it's a pet peeve. when you use a brace '{' to open a block of code, *EVERY* line after that is indented one level to the right, until another brace is found. at which point a closing brace '}' returns indentation of subsequent code back to the previous level (to the left… Re: invalid operands to binary? 13 Years Ago by tquiva I edited my function to use a for loop. But I'm still getting a 0 at output for my average. Could someone take a look at my program and see what I did wrong please? [CODE]double tableAverage(double a[], int num) { // Declarations double avg = 0; double total = 0; int i; // Counter for(i = 0; i <= num; … Re: invalid operands to binary? 13 Years Ago by abhimanipal Look closely into you for loop. This is the statement that you have written [CODE] total += a[MAXVALS]; [/CODE] What this means is that you are adding the value stored in a[100] num times. Is this what you want to do ? Re: invalid operands to binary? 13 Years Ago by jonsca On line 11, you're adding the same value (one past the end of the array, not what you want) over and over again. You want to add [icode] a[i] [/icode]. Double check your for loop there too, count the number of elements that loop will step through. Re: error in my code: invalid operands to binary + 13 Years Ago by gerard4143 The problem...your trying to add two char pointers...I think. Could you post the rest of the code. Re: error in my code: invalid operands to binary + 13 Years Ago by dy/dx [QUOTE=gerard4143;1272449]The problem...your trying to add two char pointers...I think. Could you post the rest of the code.[/QUOTE] thanks. I realized it after i posted it. I just can't add two char pointers/strings. I have to used the function strcat(str1, str2), right? Re: error in my code: invalid operands to binary + 13 Years Ago by gerard4143 [QUOTE=dy/dx;1272466]thanks. I realized it after i posted it. I just can't add two char pointers/strings. I have to used the function strcat(str1, str2), right?[/QUOTE] Well if you want to append one string onto another, then yes use strcat. Re: error c# : operator == cannot be applied to operands of type 'System.IntPtr' and 'int 13 Years Ago by mxadam also used this to gain top window info (the text box displays each window handle fine btw) [code] [ DllImport("user32.dll") ] static extern int GetForegroundWindow(); [ DllImport("user32.dll") ] static extern int GetWindowText(int hWnd, StringBuilder text, int count); [/code] Re: Types of Operands 13 Years Ago by sDJh what do you wanna hear? you can have general purpose registers like EAX, EBX etc, segment registers like CS, DS, SS and so on, memory data like [storage], immediately data like $FF or a vector to a label (eg JMP somewhere). If I haven't forgotten anything, than that's all you have to know. Re: Invalid operands to binary * 11 Years Ago by zeroliken how is matrix initialized? are you trying to allocate a single or a 2d array Re: Invalid operands to binary * 11 Years Ago by kovacsakos 2d array, but the problem is solved, it was caused by a pointer. Doubly Linked List, push not working correctly 14 Years Ago by kevinkace …->prev = 0; operands->prev = newNode; operands = newNode;*/ NodeOperand* temp = operands; operands = new NodeOperand; operands->next = temp; temp->prev = operands; operands->prev = 0… Java Calculator Stack Problem 12 Years Ago by DaAznSmurf …performBinaryOp(a[i]); } str = String.valueOf(operands.pop()); results.setText(str); } } public void… = new Double(leftOperand / rightOperand); break; } operands.push(result); } public static void main(String[] args… Help plz! i cant seem to print the answer 14 Years Ago by asweetroxxi … or not cin>> moredata; operands.push(number);// push into stack } while…command a=operands.top();// pop first number operands.pop(); b=operands.top();// pop second number operands.pop();…