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C & C++ Patulong po sana sa C++ code po

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Paul Sernine

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Patulong sana ako lodi kung ano po mali ko dito.

#include <iostream> using namespace std; int main() { const double PI = 3.1415926535897932384650288; //Pi accuracy double sin (double x) //Sine by Taylor's Series } double sign = 1; if (x < 0) { sign = -1.0; x = -x; } if (x > 360) x = int(x/360)*360; x *= PI/180.0; double res = 0; double term = x; int k = 1; while (res+term!=res) { res += term; k +=2 ; term *= -x*x/k/(k-1); } return sign*res; } double cos(double x) //Cosine by Taylor's Series { double sign = 1; if (x < 0) { sign = -1.0; x = -x; } if (x > 360) x -= int(x/360)*360; x *= PI/180.0; double res = 0; double term = 1; int k = 0; while (res+term!=res) { res += term; k += 2; term *= -x*x/k/(k-1); } return res; } double tan(double x) // tan(x) = sin(x)/cos(x) { double res = (sin(x)/cos(x)); if (res > 100) { res=1.0/0.0; } else if (res < -100){ res= -1.0/0.0; } return res; } double cot (double x) // cot(x) = cos(x)/sin(x) { double res = (cos(x)/sin(x)); if (res > 100) { res = 1.0/0.0; } else if (res < -100) { res = -1.0/0.0; } return res; } double sec (double x) // sec(x) = 1/cos(x) { double res = (1.0/cos(x)); if (res > 100) { res = 1.0/0.0; } else if (res < -100) { res = -1.0/0.0; } return res; } double csc(double x) // csc(x) = 1/sin(x) { double res = (1.0/sin(x)); if (res > 100) { res = 1.0/0.0; } else if (res < -100) { res = -1.0/0.0; } return res; } double x, output; int main() { char recompute = 'y'; while (recompute == 'y' || recompute == 'Y') { cout<< "\nEnter angle x:\t"; cin >> x; output = sin(x); cout << "\n sin(x)=\t" << output << endl; output = cos(x); cout << "\n cos(x)=\t" << output << endl; output = tan(x); cout << "\n tan(x)=\t" << output << endl; output = cot(x); cout << "\n cot(x)=\t" << output << endl; output = sec(x); cout << "\n sec(x)=\t" << output << endl; output = csc(x); cout << "\n csc(x)=\t" << output << endl; cout << "\n Recompute? (y/n):\t"; cin >> recompute; } //end while loop cout << "Process complete." << endl; return 0; }
 
main.cpp:8:2: error: expected unqualified-id before ‘if’
8 | if (x < 0)
| ^~
main.cpp:13:2: error: expected unqualified-id before ‘if’
13 | if (x > 360)
| ^~
main.cpp:15:2: error: ‘x’ does not name a type
15 | x *= PI/180.0;
| ^
main.cpp:17:16: error: ‘x’ was not declared in this scope
17 | double term = x;
| ^
main.cpp:19:2: error: expected unqualified-id before ‘while’
19 | while (res+term!=res)
| ^~~~~
main.cpp:25:2: error: expected unqualified-id before ‘return’
25 | return sign*res;
| ^~~~~~
main.cpp:26:1: error: expected declaration before ‘}’ token
26 | }
| ^
main.cpp: In function ‘double cos(double)’:
main.cpp:36:7: error: ‘PI’ was not declared in this scope
36 | x *= PI/180.0;
| ^~
main.cpp: In function ‘double tan(double)’:
main.cpp:50:16: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
50 | double res = (sin(x)/cos(x)); if (res > 100)
| ^~~
| sign
main.cpp: In function ‘double cot(double)’:
main.cpp:61:23: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
61 | double res = (cos(x)/sin(x));
| ^~~
| sign
main.cpp: In function ‘double csc(double)’:
main.cpp:87:20: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
87 | double res = (1.0/sin(x));
| ^~~
| sign
main.cpp: At global scope:
main.cpp:99:5: error: redefinition of ‘int main()’
99 | int main()
| ^~~~
main.cpp:3:5: note: ‘int main()’ previously defined here
3 | int main()
| ^~~~
main.cpp: In function ‘int main()’:
main.cpp:106:11: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
106 | output = sin(x);
| ^~~
| sign

ito nakita ko lods
Crayvolt said:
pa up ung my mga compiler dyan or pwede mo i paste sa online meron mga online compiler na website google mo nalang

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Click to expand...
 
Paul Sernine said:
main.cpp:8:2: error: expected unqualified-id before ‘if’
8 | if (x < 0)
| ^~
main.cpp:13:2: error: expected unqualified-id before ‘if’
13 | if (x > 360)
| ^~
main.cpp:15:2: error: ‘x’ does not name a type
15 | x *= PI/180.0;
| ^
main.cpp:17:16: error: ‘x’ was not declared in this scope
17 | double term = x;
| ^
main.cpp:19:2: error: expected unqualified-id before ‘while’
19 | while (res+term!=res)
| ^~~~~
main.cpp:25:2: error: expected unqualified-id before ‘return’
25 | return sign*res;
| ^~~~~~
main.cpp:26:1: error: expected declaration before ‘}’ token
26 | }
| ^
main.cpp: In function ‘double cos(double)’:
main.cpp:36:7: error: ‘PI’ was not declared in this scope
36 | x *= PI/180.0;
| ^~
main.cpp: In function ‘double tan(double)’:
main.cpp:50:16: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
50 | double res = (sin(x)/cos(x)); if (res > 100)
| ^~~
| sign
main.cpp: In function ‘double cot(double)’:
main.cpp:61:23: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
61 | double res = (cos(x)/sin(x));
| ^~~
| sign
main.cpp: In function ‘double csc(double)’:
main.cpp:87:20: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
87 | double res = (1.0/sin(x));
| ^~~
| sign
main.cpp: At global scope:
main.cpp:99:5: error: redefinition of ‘int main()’
99 | int main()
| ^~~~
main.cpp:3:5: note: ‘int main()’ previously defined here
3 | int main()
| ^~~~
main.cpp: In function ‘int main()’:
main.cpp:106:11: error: ‘sin’ was not declared in this scope; did you mean ‘sign’?
106 | output = sin(x);
| ^~~
| sign

ito nakita ko lods
Click to expand...
aww goods yan ung mga my mali dami ah hahahahah

‘sin’ was not declared in this scope; did you mean ‘sign’?

sign naka declare na variable hindi sin

double sign = 1;
 
Last edited:
1676483143215.png


dito pa lang sinarado mo na yung int main() lagay mo yung close curly bracket sa pinakadulo
 

Attachments

#include <iostream>
#include <cmath>
using namespace std;

const double PI = 3.1415926535897932384650288;

double sin(double x)
{
double sign = 1;
if (x < 0)
{
sign = -1.0;
x = -x;
}
if (x > 360)
x = int(x/360)*360;
x *= PI/180.0;
double res = 0;
double term = x;
int k = 1;
while (res+term != res)
{
res += term;
k += 2 ;
term *= -x*x/k/(k-1);
}
return sign*res;
}

double cos(double x)
{
double sign = 1;
if (x < 0)
{
sign = -1.0;
x = -x;
}
if (x > 360)
x -= int(x/360)*360;
x *= PI/180.0;
double res = 0;
double term = 1;
int k = 0;
while (res+term != res)
{
res += term;
k += 2;
term *= -x*x/k/(k-1);
}
return res;
}

double tan(double x)
{
double res = (sin(x)/cos(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double cot(double x)
{
double res = (cos(x)/sin(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double sec(double x)
{
double res = (1.0/cos(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double csc(double x)
{
double res = (1.0/sin(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

int main()
{
double x, output;
char recompute = 'y';
while (recompute == 'y' || recompute == 'Y')
{
cout << "\nEnter angle x (in degrees):\t";
cin >> x;
output = sin(x);
cout << "\n sin(x)=\t" << output << endl;
output = cos(x);
cout << "\n cos(x)=\t" << output << endl;
output = tan(x);
cout << "\n tan(x)=\t" << output << endl;
output = cot(x);
cout << "\n cot(x)=\t" << output << endl;
output = sec(x);
cout << "\n sec(x)=\t" << output << endl;
output = csc(x);
cout << "\n csc(x)=\t" << output << endl;
cout << "\n Recompute? (y/n):\t";
cin >> recompute;

} //end while loop
cout << "Process complete." << endl;
return 0;
}

1676994328190.png
 

Attachments

Mr Pujay said:
#include <iostream>
#include <cmath>
using namespace std;

const double PI = 3.1415926535897932384650288;

double sin(double x)
{
double sign = 1;
if (x < 0)
{
sign = -1.0;
x = -x;
}
if (x > 360)
x = int(x/360)*360;
x *= PI/180.0;
double res = 0;
double term = x;
int k = 1;
while (res+term != res)
{
res += term;
k += 2 ;
term *= -x*x/k/(k-1);
}
return sign*res;
}

double cos(double x)
{
double sign = 1;
if (x < 0)
{
sign = -1.0;
x = -x;
}
if (x > 360)
x -= int(x/360)*360;
x *= PI/180.0;
double res = 0;
double term = 1;
int k = 0;
while (res+term != res)
{
res += term;
k += 2;
term *= -x*x/k/(k-1);
}
return res;
}

double tan(double x)
{
double res = (sin(x)/cos(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double cot(double x)
{
double res = (cos(x)/sin(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double sec(double x)
{
double res = (1.0/cos(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

double csc(double x)
{
double res = (1.0/sin(x));
if (res > 100 || res < -100)
{
res = NAN;
}
return res;
}

int main()
{
double x, output;
char recompute = 'y';
while (recompute == 'y' || recompute == 'Y')
{
cout << "\nEnter angle x (in degrees):\t";
cin >> x;
output = sin(x);
cout << "\n sin(x)=\t" << output << endl;
output = cos(x);
cout << "\n cos(x)=\t" << output << endl;
output = tan(x);
cout << "\n tan(x)=\t" << output << endl;
output = cot(x);
cout << "\n cot(x)=\t" << output << endl;
output = sec(x);
cout << "\n sec(x)=\t" << output << endl;
output = csc(x);
cout << "\n csc(x)=\t" << output << endl;
cout << "\n Recompute? (y/n):\t";
cin >> recompute;

} //end while loop
cout << "Process complete." << endl;
return 0;
}

View attachment 2528631
Click to expand...
ano yung error paps?
 

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