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| 2 | <center><h3>Examples of interactive exercises under OEF format</h3></center> <p> |
2 | <center><h3>Examples of interactive exercises under OEF format</h3></center> <p> |
| 3 | 3 | ||
| 4 | Here are some exampls of interactive exercises one can create by Createxo. |
4 | Here are some exampls of interactive exercises one can create by Createxo. |
| 5 | <ol> |
5 | <ol> |
| 6 | <p><hr width="50%"> <p> |
6 | <p><hr width="50%"/> <p> |
| 7 | <li> <b>Length of vector 2D</b>, a simple computation of the length of |
7 | <li> <b>Length of vector 2D</b>, a simple computation of the length of |
| 8 | a vector in the plane. Here is the complete source of this exercise. |
8 | a vector in the plane. Here is the complete source of this exercise. |
| 9 | 9 | ||
| 10 | <p><pre> |
10 | <p><pre> |
| 11 | \title{Norm of vector 2D} |
11 | \title{Norm of vector 2D} |
| Line 32... | Line 32... | ||
| 32 | You can |
32 | You can |
| 33 | !set parm=oef_answercnt=1&oef_choicecnt=0&oef_title=Norm of vector 2D&oef_format=html&oef_computeanswer=no&level=2&oef_parms=%5Cinteger%7Bx%3Drandom%28-10..10%29%7D%0D%0A%5Cinteger%7By%3Drandom%28-10..10%29%7D%0D%0A%5Creal%7Bnorm%3Dsqrt%28%28%5Cx%29%5E2%2B%28%5Cy%29%5E2%29%7D&oef_statement=What is the length of the vector %28%5Cx%2C%5Cy%29 in R%3Csup%3E2%3C%2Fsup%3E%3F&ansprompt1=The length&ansgood1=%5Cnorm&oef_hint=The length f a vector %28x%2Cy%29 is equal to %0D%0Asqrt%28x%5E2%2By%5E2%29.&oef_solution= $ |
33 | !set parm=oef_answercnt=1&oef_choicecnt=0&oef_title=Norm of vector 2D&oef_format=html&oef_computeanswer=no&level=2&oef_parms=%5Cinteger%7Bx%3Drandom%28-10..10%29%7D%0D%0A%5Cinteger%7By%3Drandom%28-10..10%29%7D%0D%0A%5Creal%7Bnorm%3Dsqrt%28%28%5Cx%29%5E2%2B%28%5Cy%29%5E2%29%7D&oef_statement=What is the length of the vector %28%5Cx%2C%5Cy%29 in R%3Csup%3E2%3C%2Fsup%3E%3F&ansprompt1=The length&ansgood1=%5Cnorm&oef_hint=The length f a vector %28x%2Cy%29 is equal to %0D%0Asqrt%28x%5E2%2By%5E2%29.&oef_solution= $ |
| 34 | !href cmd=reply&mode=guided&$parm load this example into the menu |
34 | !href cmd=reply&mode=guided&$parm load this example into the menu |
| 35 | to test it. (You can also copy the source into the menu under raw mode.) |
35 | to test it. (You can also copy the source into the menu under raw mode.) |
| 36 | 36 | ||
| 37 | <p><hr width="50%"> <p> |
37 | <p><hr width="50%"/> <p> |
| 38 | <li> <b>Trace of matrix 2x2</b>, computes the trace of a matrix. The question |
38 | <li> <b>Trace of matrix 2x2</b>, computes the trace of a matrix. The question |
| 39 | is formatted by TeX, for a better presentation of the matrix. Here is |
39 | is formatted by TeX, for a better presentation of the matrix. Here is |
| 40 | the complete source of the exercise. |
40 | the complete source of the exercise. |
| 41 | <p><pre> |
41 | <p><pre> |
| 42 | \title{Trace of matrix 2x2} |
42 | \title{Trace of matrix 2x2} |