C++ program-help printing columns and rows

In summary, To print columns and rows in a C++ program, you can use nested for loops and the 'cout' statement. To create a table, you can use the 'setw()' function and the 'iomanip' library. To format the output, you can use 'setw()', 'setfill()', and 'endl'. To add headers, you can use 'setfill()', 'setw()', and 'endl'. You can also print a table with different data types using 'setw()', 'setprecision()', and manipulators like 'left' and 'right'.
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C++ program--help printing columns and rows

Homework Statement


Print the approx of e^x from 1 to 100. It might not fit on screen so for example print out in 10 columns and 10 rows.

Homework Equations


Code: 
        int row =1; 
       while (row < 20)
       {
            int column = 1;

            while (column < 5)
            {
             cout << endl;
             column++;
            }
       row++; 
       }

The Attempt at a Solution



I'm trying to print out 20 rows and 5 columns of the approx of e^x from 1 to 100. Right now I'm only concerned about the print out. Right now its an ugly mess. Everything seems shifted over and there is no uniform columns. Then at the end there is a mess of zeros. Here is the code
Code: 
#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double ex, realex, x, fact;

    cout << "Enter x:";
    cin >> x;
    
    
        int row = 1;

        while (row < 20)
        {
            int column = 1;

            while (column < 5)
            {
                for (int n = 1; n < 100; n++)
    		{
        	    fact *= n;
        	    ex = (pow(x, n))/fact;
		    cout << ex << " ";
                    
                }
            column++;
            cout << endl;
    
            }
	row++;
        }

    realex = exp(x);
    cout << "Function ex from cmath: " << realex << endl;

    return 0;
}
output:
Code: 
Enter x:2
4.11584e+269 4.11584e+269 2.7439e+269 1.37195e+269 5.48779e+268 1.82926e+268 5.22647e+267 1.30662e+267 2.90359e+266 5.80719e+265 1.05585e+265 1.75975e+264 2.70731e+263 3.86759e+262 5.15679e+261 6.44598e+260 7.58351e+259 8.42612e+258 8.8696e+257 8.8696e+256 8.44724e+255 7.67931e+254 6.67766e+253 5.56472e+252 4.45177e+251 3.42444e+250 2.53662e+249 1.81187e+248 1.24957e+247 8.33045e+245 5.37449e+244 3.35905e+243 2.03579e+242 1.19752e+241 6.84299e+239 3.80166e+238 2.05495e+237 1.08155e+236 5.54643e+234 2.77322e+233 1.35279e+232 6.44185e+230 2.99621e+229 1.36191e+228 6.05295e+226 2.63172e+225 1.11988e+224 4.66616e+222 1.90456e+221 7.61822e+219 2.98754e+218 1.14905e+217 4.33605e+215 1.60594e+214 5.8398e+212 2.08564e+211 7.31804e+209 2.52346e+208 8.55411e+206 2.85137e+205 9.34876e+203 3.01573e+202 9.57374e+200 2.99179e+199 9.20552e+197 2.78955e+196 8.32702e+194 2.44912e+193 7.09891e+191 2.02826e+190 5.71341e+188 1.58706e+187 4.3481e+185 1.17516e+184 3.13377e+182 8.24676e+180 2.14201e+179 5.49235e+177 1.39047e+176 3.47617e+174 8.58313e+172 2.09345e+171 5.04445e+169 1.20106e+168 2.82602e+166 6.57214e+164 1.51084e+163 3.43372e+161 7.71623e+159 1.71472e+158 3.76861e+156 8.19263e+154 1.76186e+153 3.74863e+151 7.89185e+149 1.64414e+148 3.38997e+146 6.91831e+144 1.39764e+143
4.41017e+113 4.41017e+113 2.94011e+113 1.47006e+113 5.88022e+112 1.96007e+112 5.60021e+111 1.40005e+111 3.11123e+110 6.22246e+109 1.13136e+109 1.88559e+108 2.90091e+107 4.14416e+106 5.52555e+105 6.90694e+104 8.12581e+103 9.02868e+102 9.50387e+101 9.50387e+100 9.0513e+99 8.22846e+98 7.15518e+97 5.96265e+96 4.77012e+95 3.66932e+94 2.71802e+93 1.94144e+92 1.33892e+91 8.92617e+89 5.75882e+88 3.59926e+87 2.18137e+86 1.28316e+85 7.33234e+83 4.07352e+82 2.2019e+81 1.1589e+80 5.94306e+78 2.97153e+77 1.44953e+76 6.90251e+74 3.21047e+73 1.4593e+72 6.48579e+70 2.81991e+69 1.19996e+68 4.99984e+66 2.04075e+65 8.163e+63 3.20118e+62 1.23122e+61 4.64612e+59 1.72079e+58 6.2574e+56 2.23479e+55 7.84136e+53 2.70392e+52 9.16582e+50 3.05527e+49 1.00173e+48 3.23138e+46 1.02584e+45 3.20574e+43 9.86381e+41 2.98903e+40 8.92249e+38 2.62426e+37 7.60655e+35 2.1733e+34 6.12197e+32 1.70055e+31 4.65904e+29 1.2592e+28 3.35786e+26 8.83648e+24 2.29519e+23 5.8851e+21 1.4899e+20 3.72475e+18 9.19691e+16 2.24315e+15 5.40518e+13 1.28695e+12 3.02811e+10 7.04212e+08 1.61888e+07 367927 8268.02 183.734 4.0381 0.0877849 0.00188785 4.0167e-05 8.4562e-07 1.76171e-08 3.63239e-10 7.41304e-12 1.49758e-13
4.72554e-43 4.72554e-43 3.15036e-43 1.57518e-43 6.30072e-44 2.10024e-44 6.00069e-45 1.50017e-45 3.33371e-46 6.66743e-47 1.21226e-47 2.02043e-48 3.10836e-49 4.44051e-50 5.92068e-51 7.40085e-52 8.70689e-53 9.67432e-54 1.01835e-54 1.01835e-55 9.69857e-57 8.81688e-58 7.66685e-59 6.38904e-60 5.11123e-61 3.93172e-62 2.91238e-63 2.08027e-64 1.43467e-65 9.56448e-67 6.17063e-68 3.85664e-69 2.33736e-70 1.37492e-71 7.85667e-73 4.36482e-74 2.35936e-75 1.24177e-76 6.36805e-78 3.18402e-79 1.55318e-80 7.39611e-82 3.44005e-83 1.56366e-84 6.94959e-86 3.02156e-87 1.28577e-88 5.35738e-90 2.18669e-91 8.74674e-93 3.4301e-94 1.31927e-95 4.97837e-97 1.84384e-98 6.70487e-100 2.3946e-101 8.4021e-103 2.89727e-104 9.82127e-106 3.27376e-107 1.07336e-108 3.46246e-110 1.09919e-111 3.43498e-113 1.05692e-114 3.20278e-116 9.56054e-118 2.81192e-119 8.1505e-121 2.32871e-122 6.55976e-124 1.82215e-125 4.99221e-127 1.34924e-128 3.59799e-130 9.46838e-132 2.45932e-133 6.30595e-135 1.59644e-136 3.99111e-138 9.85459e-140 2.40356e-141 5.79171e-143 1.37898e-144 3.24465e-146 7.5457e-148 1.73464e-149 3.94237e-151 8.85927e-153 1.96873e-154 4.32687e-156 9.40624e-158 2.02285e-159 4.30393e-161 9.06091e-163 1.88769e-164 3.89214e-166 7.94315e-168 1.60468e-169
5.06347e-199 5.06347e-199 3.37564e-199 1.68782e-199 6.75129e-200 2.25043e-200 6.4298e-201 1.60745e-201 3.57211e-202 7.14422e-203 1.29895e-203 2.16491e-204 3.33064e-205 4.75805e-206 6.34407e-207 7.93009e-208 9.32952e-209 1.03661e-209 1.09117e-210 1.09117e-211 1.03921e-212 9.44737e-214 8.21511e-215 6.84592e-216 5.47674e-217 4.21288e-218 3.12065e-219 2.22904e-220 1.53727e-221 1.02484e-222 6.61189e-224 4.13243e-225 2.50451e-226 1.47324e-227 8.41851e-229 4.67695e-230 2.52808e-231 1.33057e-232 6.82343e-234 3.41171e-235 1.66425e-236 7.925e-238 3.68605e-239 1.67548e-240 7.44656e-242 3.23764e-243 1.37772e-244 5.74049e-246 2.34306e-247 9.37223e-249 3.67538e-250 1.41361e-251 5.33437e-253 1.97569e-254 7.18434e-256 2.56584e-257 9.00293e-259 3.10446e-260 1.05236e-261 3.50786e-263 1.15012e-264 3.71006e-266 1.1778e-267 3.68062e-269 1.1325e-270 3.43181e-272 1.02442e-273 3.013e-275 8.73334e-277 2.49524e-278 7.02885e-280 1.95246e-281 5.3492e-283 1.44573e-284 3.85528e-286 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Function ex from cmath: 7.38906
 
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  • #2
Problem: Right now I'm only concerned about the print out. Right now its an ugly mess.

Solution: For neat output, you have to supply the formatting, the function sprintf() will be of some assistance. There are various ways to acomplish this formatting on the fly. The first method is to group your row data, then format all at the same time, whereas the other method, is to index the output string at fixed column intervals and insert the data, as you calculate it, at itz relevant column position. C also has formatting codes, for integer, string, floats and so on. Check it out, it will make your output look like a nice table, once you plan it correctly.

happy computing (**).
 
1.

How do I print columns and rows in a C++ program?

To print columns and rows in a C++ program, you can use nested for loops. The outer loop will iterate through the rows and the inner loop will iterate through the columns. Inside the inner loop, you can use the 'cout' statement to print the desired output in each cell of the table.

2.

What is the syntax for creating a table in a C++ program?

To create a table in a C++ program, you can use the 'cout' statement to print the elements of the table in each cell. You can also use the 'setw()' function from the 'iomanip' library to set the width of each cell and create a visually appealing table.

3.

How can I format the output of my table in a C++ program?

You can format the output of your table in a C++ program by using the 'setw()' and 'setfill()' functions from the 'iomanip' library. These functions allow you to set the width and fill character for each cell, making it easier to create a well-formatted table.

4.

How do I add headers to my table in a C++ program?

To add headers to your table in a C++ program, you can use the 'setfill()' and 'setw()' functions to create a separate row for the headers. You can also use the 'endl' statement to insert a line break after the headers, making them stand out from the rest of the table.

5.

Can I print a table with different data types in a C++ program?

Yes, you can print a table with different data types in a C++ program. You can use the 'setw()' function to set the width of each cell and the 'setprecision()' function to specify the number of decimal places for floating-point numbers. You can also use the 'left' and 'right' manipulators to align the data in each cell to the left or right.

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