From 01346fb8131b2917353a1d78715582e33f07fa96 Mon Sep 17 00:00:00 2001
From: Tim Hunt
The example formula uses the operator +. Other accepted operators are -*/ and % where % is the modulo operator. It is also possible to use some PHP-style mathematical function. Among these there are 24 single-argument function:
-abs, acos, acosh, asin, asinh, atan, atanh, ceil, cos, cosh, deg2rad, exp, expm1, floor, log, log10, log1p, rad2deg, round, sin, sinh, sprt, tan, tanh
+abs, acos, acosh, asin, asinh, atan, atanh, ceil, cos, cosh, deg2rad, exp, expm1, floor, log, log10, log1p, rad2deg, round, sin, sinh, sqrt, tan, tanh
and two two-argument functions
atan2, pow
and the functions min and max that can take two or more arguments. It is also possible to use the function pi that takes no arguments but do not forget the use the parentheses - the correct usage is pi(). Similarly the other function must have their argument(s) within parentheses. Possible usage is for example sin({a}) + cos({b}) * 2. It should not be any problem to wrap functions within each other like cos(deg2rad({a} + 90)) etc.
diff --git a/lang/en_utf8/help/qtype_calculatedsimple/calculatedsimple.html b/lang/en_utf8/help/qtype_calculatedsimple/calculatedsimple.html
index 2d0241d12c..45bb1d6668 100644
--- a/lang/en_utf8/help/qtype_calculatedsimple/calculatedsimple.html
+++ b/lang/en_utf8/help/qtype_calculatedsimple/calculatedsimple.html
@@ -48,7 +48,7 @@
In the question text input and "Correct Answer Formula" {a} and {b} can be seen. Only those in "Correct Answer Formula" can be used as a wildcard that is substituted by some value when the quiz is taken. Also, the correct answer is calculated when the quiz is submitted using the expression in "Correct Answer Formula", which is calculated as a numerical expression after the substitution of the wildcards.
The example formula uses the operator +. Other accepted operators are -*/ and % where % is the modulo operator. It is also possible to use some PHP-style mathematical function. Among these there are 24 single-argument function:
-abs, acos, acosh, asin, asinh, atan, atanh, ceil, cos, cosh, deg2rad, exp, expm1, floor, log, log10, log1p, rad2deg, round, sin, sinh, sprt, tan, tanh
+abs, acos, acosh, asin, asinh, atan, atanh, ceil, cos, cosh, deg2rad, exp, expm1, floor, log, log10, log1p, rad2deg, round, sin, sinh, sqrt, tan, tanh
and two two-argument functions
atan2, pow
and the functions min and max that can take two or more arguments. It is also possible to use the function pi that takes no arguments but do not forget the use the parentheses - the correct usage is pi(). Similarly the other function must have their argument(s) within parentheses. Possible usage is for example sin({a}) + cos({b}) * 2. It should not be any problem to wrap functions within each other like cos(deg2rad({a} + 90)) etc.
--
2.39.5