MathCeilRoundFloor - script per MetaTrader 5

An example of mathematical functions:

• MathCeil returns the nearest upper integer;
• MathRound rounds a number to the nearest integer;
• MathFloor returns the nearest lower integer.

The code:

//+------------------------------------------------------------------+
//|                                           MathCeilRoundFloor.mq5 |
//|                              Copyright © 2016, Vladimir Karputov |
//|                                           http://wmua.ru/slesar/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2016, Vladimir Karputov"
#property link      "http://wmua.ru/slesar/"
#property description "MathCeil: Returns integer numeric value closest from above"
#property description "MathRound: Rounds of a value to the nearest integer"
#property description "MathFloor: Returns integer numeric value closest from below"
#property description "MathCeil: Returns integer numeric value closest from above"
#property description "MathRound: Rounds of a value to the nearest integer"
#property description "MathFloor: Returns integer numeric value closest from below"
#property version   "1.003"
//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
  {
//---
   double price=1.01561;
   Print("\n","Start price: ",DoubleToString(price,5));
   for(int i=0;i<10;i++)
     {
      Print("MathCeil(",DoubleToString(price,5),") ->  ",MathCeil(price));
      Print("MathRound(",DoubleToString(price,5),") ->  ",MathRound(price));
      Print("MathFloor(",DoubleToString(price,5),") ->  ",MathFloor(price));
      Print("");
      price+=1.9;
     }
  }

Starting with "price" equal to 1.01561 and then increase it by 1.9 in a loop.

Result:

Start price: 1.01561
MathCeil(1.01561) ->  2.0
MathRound(1.01561) ->  1.0
MathFloor(1.01561) ->  1.0

MathCeil(2.91561) ->  3.0
MathRound(2.91561) ->  3.0
MathFloor(2.91561) ->  2.0

MathCeil(4.81561) ->  5.0
MathRound(4.81561) ->  5.0
MathFloor(4.81561) ->  4.0

MathCeil(6.71561) ->  7.0
MathRound(6.71561) ->  7.0
MathFloor(6.71561) ->  6.0

MathCeil(8.61561) ->  9.0
MathRound(8.61561) ->  9.0
MathFloor(8.61561) ->  8.0

MathCeil(10.51561) ->  11.0
MathRound(10.51561) ->  11.0
MathFloor(10.51561) ->  10.0

MathCeil(12.41561) ->  13.0
MathRound(12.41561) ->  12.0
MathFloor(12.41561) ->  12.0

MathCeil(14.31561) ->  15.0
MathRound(14.31561) ->  14.0
MathFloor(14.31561) ->  14.0

MathCeil(16.21561) ->  17.0
MathRound(16.21561) ->  16.0
MathFloor(16.21561) ->  16.0

MathCeil(18.11561) ->  19.0
MathRound(18.11561) ->  18.0
MathFloor(18.11561) ->  18.0