86 lines
2.8 KiB
Markdown
86 lines
2.8 KiB
Markdown
# MathRound
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The function returns a value rounded off to the nearest integer of the specified numeric value.
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```
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double MathRound(
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double value // value to be rounded
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);
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```
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Parameters
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value
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[in] Numeric value before rounding.
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Return Value
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Value rounded till to the nearest integer.
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Note
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Instead of MathRound() you can use round().
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Example:
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```
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#define VALUES_TOTAL 31
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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//--- declare variables for conversion
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double value=0; // real number for MathRound conversion
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int round_value=0; // get the result here
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//--- in a loop by the number of decimal increments of a real number
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for(int i=0; i<VALUES_TOTAL; i++)
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{
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//--- increase the real number value,
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//--- get a numeric value rounded to the nearest integer
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//--- and display control values in the journal
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value+=0.1;
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round_value=(int)MathRound(NormalizeDouble(value,1));
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PrintFormat("value: %.1f, round value: %d",value,round_value);
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/*
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result:
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value: 0.1, round value: 0
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value: 0.2, round value: 0
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value: 0.3, round value: 0
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value: 0.4, round value: 0
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value: 0.5, round value: 1
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value: 0.6, round value: 1
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value: 0.7, round value: 1
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value: 0.8, round value: 1
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value: 0.9, round value: 1
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value: 1.0, round value: 1
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value: 1.1, round value: 1
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value: 1.2, round value: 1
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value: 1.3, round value: 1
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value: 1.4, round value: 1
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value: 1.5, round value: 2
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value: 1.6, round value: 2
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value: 1.7, round value: 2
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value: 1.8, round value: 2
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value: 1.9, round value: 2
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value: 2.0, round value: 2
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value: 2.1, round value: 2
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value: 2.2, round value: 2
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value: 2.3, round value: 2
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value: 2.4, round value: 2
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value: 2.5, round value: 3
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value: 2.6, round value: 3
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value: 2.7, round value: 3
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value: 2.8, round value: 3
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value: 2.9, round value: 3
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value: 3.0, round value: 3
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value: 3.1, round value: 3
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*/
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}
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}
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```
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