Expressions in Adx language

The Aldexia software allows the manipulation of 2 types of data: Boolean (Boolean) and real numbers (Double).

The available Boolean operators are :

• = : equality.
• not : operator NOT.
• and : operator AND.
• or : operator OR.

The real operators available are :

• + : addition.
• - : subtraction.
• * : multiplication.
• / : division.
• = : equality.
• <> : not equal.
• < : less than.
• <= : less than or equal to.
• > : greater than.
• >= : greater than or equal to.
• % : modulo.
• ^ : power.

The available mathematical functions are :

• abs(double) : absolute value.
• sqrt(double) : square root.
• exp(double) : exponential.
• log(double) : Napierian logarithm.
• log10(double) : logarithm (base 10).
• cos(double) : cosine.
• sin(double) : sine.
• tan(double) : tangent.
• acos(double) : arc cosine.
• asin(double) : arc sine.
• atan(double) : arc tangent.
• atan2(double, double) : arc tangent.
• cosh(double) : hyperbolic cosine.
• sinh(double) : hyperbolic sine.
• tanh(double) : hyperbolic tangent.

The available logic functions are :

• crossUp(expression1:double, expression2:double) : true when the expression1 curve intersects the expression2 curve upwards.
• crossDown(expression1:double, expression2:double) : true when the expression1 curve intersects the expression2 curve downwards.
• sustain(expression:bool, double) : the "true" value is sustained for n periods.

The financial functions available are :

• quotes() : quotation.
• mavg(period) : moving average.
• macd(fast, slow, signal) : MACD.
• rsi(period) : RSI.
• cci(period) : Commodity Channel Index.
• adx(period) : Average Directional Movement Index.
• plusdi(period) : +DI.
• minusdi(period) : -DI.

Note: New financial functions are currently being developed..

Examples of expressions:

• quotes() >= mavg(20)
• quotes() < mavg(40) - 20
• crossUp(mavg(50), quotes())
• crossUp(mavg(20), mavg(30))
• mavg(50) - mavg(20)
• macd(12,26,9)>0
• crossDown(mavg(20), mavg(30))
• sustain(crossup(mavg(20), mavg(30)), 5)