--- /dev/null
+# menu for DCT, by Shiar
+
+# 1.09.1 2004-10-02 22:55 - moved from 1.9 main
+# 1.09.2 2004-10-11 20:50 - functions don't handle stack themselves,
+# but behave like real functions
+
+use strict;
+use warnings;
+use utf8;
+
+my %newaction = (
+ '+' => [2, sub { $_[1] + $_[0] }], # addition
+ '-' => [2, sub { $_[1] - $_[0] }], # substraction
+ '*' => [2, sub { $_[1] * $_[0] }], # multiplication
+ '/' => [2, sub { $_[1] / $_[0] }], # division
+ 'mod' => [2, sub { $_[1] % $_[0] }], # modulo
+
+ 'inv' => [1, sub { 1 / $_[0] }], # 1/x
+ 'sqrt' => [1, sub { sqrt $_[0] }], # square root
+ 'sq' => [1, sub { $_[0] * $_[0] }], # squared
+ '^' => [2, sub { $_[1] ** $_[0] }], # exponentiation
+ 'xroot'=> [2, sub { $_[1] ** (1/$_[0]) }], # x-root of y
+
+ 'log' => [1, sub { log($_[0]) / log(10) }], # logarithm
+ 'alog' => [1, sub { 10 ** $_[0] }], # 10^x
+ 'ln' => [1, sub { log $_[0] }], # natural logaritm
+ 'lnp1' => [1, sub { log($_[0] + 1) }], # ln(x+1)
+ 'exp' => [1, sub { exp $_[0] }], # e^x
+ 'expm' => [1, sub { exp($_[0]) - 1 }], # exp(x)-1
+
+ 'sin' => [1, sub { sin $_[0] }], # sine
+ 'asin' => [1, sub { atan2($_[0], sqrt(1 - $_[0]*$_[0])) }], # inverse sine
+ 'cos' => [1, sub { cos $_[0] }], # cosine
+ 'acos' => [1, sub { atan2(sqrt(1 - $_[0]*$_[0]), $_[0]) }], # inverse cosine
+ 'tan' => [1, sub { sin($_[0]) / cos($_[0]) }], # tangent
+# 'atan' => [1, sub { }], # arctangent
+
+ 'sinh' => [1, sub { (exp($_[0]) - exp(-$_[0])) / 2 }], # hyperbolic sine
+ 'cosh' => [1, sub { (exp($_[0]) + exp(-$_[0])) / 2 }], # hyperbolic cosine
+ 'tanh' => [1, sub { (exp($_[0]) - exp(-$_[0])) / (exp($_[0]) + exp(-$_[0])) }], # hyperbolic tangent (sinh/cosh)
+ 'asinh'=> [1, sub { log(sqrt($_[0]**2+1) + $_[0]) }], # inverse hyperbolic sine
+ 'acosh'=> [1, sub { log(sqrt($_[0]**2-1) + $_[0]) }], # inverse hyperbolic cosine
+ 'atanh'=> [1, sub { log((1+$_[0]) / (1-$_[0])) / 2 }], # inverse hyperbolic tangent
+
+ '%' => [2, sub { $_[0] / $_[1] }], # percentage
+# '%ch' => [2, sub { $val{i} = 100*(shift(@_)-$val{i})/$val{i} }], # percentage change
+# '%t' => [2, sub { $val{i} = 100*$val{i}/shift(@_) }], # percentage total
+
+ 'and' => [2, sub { $_[1] & $_[0] }], # bitwise and
+ 'or' => [2, sub { $_[1] | $_[0] }], # bitwise or
+ 'xor' => [2, sub { $_[1] ^ $_[0] }], # bitwise xor
+ 'not' => [2, sub { ~$_[0] }], # bitwise not
+ 'sl' => [1, sub { $_[0] * 2 }], # shift left
+ 'sr' => [1, sub { $_[0] / 2 }], # shift right
+
+ 'abs' => [1, sub { abs $_[0] }], # absolute #todo
+ 'sign' => [1, sub { $_[0] <=> 0 }], # sign
+ 'ip' => [1, sub { int $_[0] }], # integer part
+ 'fp' => [1, sub { $_[0] - int $_[0] }], # fractional part
+
+# 'rnd' => [1, sub { local $_ = 10**$_[0]; $val{i} = int(($val{i}+.5)*$_)/$_ }], # round
+# 'trnc' => [1, sub { local $_ = 10**$_[0]; $val{i} = int($val{i}*$_)/$_ }], # truncate
+ 'floor'=> [1, sub { int $_[0] }], # floor
+ 'ceil' => [1, sub { int $_[0]+.9999 }], # ceil
+
+ 'min' => [2, sub { $_[1]<$_[0] ? $_[1] : $_[0] }], # minimum
+ 'max' => [2, sub { $_[1]>$_[0] ? $_[1] : $_[0] }], # maximum
+
+ 'dec' => [-1, sub { $::set{base} = 10; () }], # decimal
+ 'bin' => [-1, sub { $::set{base} = 2; () }], # binary
+ 'oct' => [-1, sub { $::set{base} = 8; () }], # octal
+ 'hex' => [-1, sub { $::set{base} = 16; () }], # hexadecimal
+ 'base' => [1, sub { $::set{base} = $_[0]; () }], # alphanumerical
+
+ '!' => [1, sub { my $res = $_[0]; $res *= $_ for 2..$res-1; $res }], # factor
+ 'rand' => [0, sub { rand }], # random value <1
+); # newaction
+
+#while (my ($cmd, $val) = each %newaction) {
+# $action{$cmd} = $val;
+#}
+
+$action{$_} = $newaction{$_} for keys %newaction;
+
+1;
+