--- doc/homework/homework5.html 2001/06/13 19:53:03 1.6
+++ doc/homework/homework5.html 2001/07/27 18:13:57 1.9
@@ -62,12 +62,26 @@
the response to go in. It checks all styles of numerical
supported in CAPA. Possible args are:
<essayresponse> implements a ungraded large
text response, it need an internal <textarea>
for the response to go in.
@@ -351,14 +365,6 @@
Differences (if any)
- |
- sin(x), cos(x), tan(x) |
- &sin($x), &cos($x), &tan($x) |
- Trigonometric functions where x is in radians. $x
- can be a pure number, i.e., you can call &sin(3.1415) |
-   |
-
-
sin(x), cos(x), tan(x) |
&sin($x), &cos($x), &tan($x) |
@@ -458,6 +464,13 @@
+ /DIS($x,"nn") |
+ &format($x,"nn") |
+ Display or format $x as nn where nn is nF or nE and n is an integer. |
+ The difference is obvious. |
+
+
+
roundto(x,n) |
&roundto($x,$n) |
Rounds a real number to n decimal points. $x and
@@ -524,17 +537,22 @@
|
map(seed;a,b,c,d;w,x,y,z) |
- Option 1 - &map($seed,[\$w,\$x,\$y,\$z],\@a) or
- Option 2 - &map($seed,\@a,[$w,$x,$y,$z])
- where @a=('A','B','C','D')
- $w='W'
- $x='X'
- $y='Y'
- $z='Z' |
+ Option 1 - &map($seed,[\$w,\$x,\$y,\$z],[$a,$b,$c,$d]) or
+ Option 2 - &map($seed,\@mappedArray,[$a,$b,$c,$d])
+ Option 3 - @mappedArray = &map($seed,[$a,$b,$c,$d])
+ Option 4 - ($w,$x,$y,$z) = &map($seed,\@a)
+ where $a='A'
+ $b='B'
+ $c='B'
+ $d='B'
+ $w, $x, $y, and $z are variables |
Assigns to the variables $w, $x, $y and $z the values of the
- variables A, B, C and D depending on the seed. (Option 1 of calling map).
- In option 2, the values of $w, $x .. are mapped into the array @a. The two
- options illustrate the different grouping. |
+ $a, $b, $c and $c (A, B, C and D). The precise value for $w .. depends
+ on the seed. (Option 1 of calling map).
+ In option 2, the values of $a, $b .. are mapped into the array, @mappedArray. The two
+ options illustrate the different grouping. Options 3 and 4 give a consistent
+ way (with other functions) of mapping the items. For each option, the group can
+ be passed as an array, for example, [$a,$b,$c,$d] => \@a.
In CAPA, the arguments are divided into three groups separated
by a semicolon ;. In LON-CAPA, the separation is done by using [] brackets or
using an array @a. Note the backslash (\) before the arguments in the
@@ -544,13 +562,15 @@
|
rmap(seed;a,b,c,d;w,x,y,z) |
- &rmap($seed,[\$w,\$x,\$y,\$z],\@a) or
- &rmap($seed,\@a,[$w,$x,$y,$z])
- where @a=('A','B','C','D')
- $w='W'
- $x='X'
- $y='Y'
- $z='Z' |
+ Option 1 - &rmap($seed,[\$w,\$x,\$y,\$z],[$a,$b,$c,$d]) or
+ Option 2 - &rmap($seed,\@rmappedArray,[$a,$b,$c,$d])
+ Option 3 - @rmapped_array = &rmap($seed,[$a,$b,$c,$d])
+ Option 4 - ($w,$x,$y,$z) = &rmap($seed,\@a)
+ where $a='A'
+ $b='B'
+ $c='B'
+ $d='B'
+ $w, $x, $y, and $z are variables |
The rmap functions does the reverse action of map if the same seed
is used in calling map and rmap. |
In CAPA, the arguments are divided into three groups separated
@@ -558,6 +578,16 @@
using an array @a. Note the backslash (\) before the arguments in the
second and third groups. |
+
+
+ NOT IMPLEMENTED IN CAPA |
+ $a=&xmlparse($string) |
+ Runs the internal parser over the
+ argument parsing for display. Warning This will
+ result in different strings in different targets. Don't use
+ the results of this function as an answer. |
+ New to LON-CAPA |
+
tex(a,b), tex("a","b") |
@@ -750,13 +780,13 @@
New to LON-CAPA |
- NOT IMPLEMENTED IN CAPA |
- @return_array=&random_multivariate_normal ($item_cnt,$seed,@mean,@covar)
- NOTE: @mean should be a length p array of real numbers. @covar should be a length
- p array of references to length p arrays or real numbers (i.e. a p by p matrix. |
+ NOT DOCUMENTED IN CAPA |
+ @return_array=&random_multivariate_normal ($item_cnt,$seed,\@mean,\@covar)
+ NOTE: @mean should be of length p array of real numbers. @covar should be a length
+ p array of references to length p arrays of real numbers (i.e. a p by p matrix. |
Generate $item_cnt deviates of multivariate_normal distribution with
mean vector @mean and variance-covariance matrix. |
- New to LON-CAPA |
+ Note the backslash before the @mean and @covar arrays. |
NOT IMPLEMENTED IN CAPA |
@@ -845,7 +875,7 @@
Guy Albertelli
-Last modified: Tue June 12 15:25 EDT 2001
+Last modified: Fri Jul 13 12:10:52 EDT 2001