Round a decimal to the first decimal position that is not zero

up vote
7
down vote

favorite

I want to shorten a number to the first decimal position that is not null. The Decimal places behind should be rounded.

Examples:

0.001 -> 0.001
0.00367 -> 0.004
0.00337 -> 0.003
0.000000564 -> 0.0000006
0.00000432907543029 -> 0.000004

Currently I have the following procedure:

if (value < (decimal) 0.01)

 value = Math.Round(value, 4);

Note:

numbers will always be positive

the number of significant digits will always be 1

values larger 0.01 will always be rounded to two decimal places, hence the if < 0.01

As you can see from the examples above, a rounding to 4 Decimal places might not be enough and the value might vary greatly.

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

3

Have a look here: round-a-double-to-x-significant-figures
â€“Â Aaron Hayman
49 mins ago

1

@AaronHayman: This is decimal rather than double, and the number of significant digits isn't necessarily known - I suspect the OP doesn't want to round 123.456 to 100 for example. (Although we'll see...)
â€“Â Jon Skeet
48 mins ago

What do you want to do for values that aren't between -1 and 1? For example, what would the result for 123.456 be?
â€“Â Jon Skeet
47 mins ago

The number of significant figures is surely one, from the description. I didn't say the link is the answer, but it does provides useful information to solving the problem
â€“Â Aaron Hayman
44 mins ago

add a commentÂ |Â

up vote
7
down vote

favorite

I want to shorten a number to the first decimal position that is not null. The Decimal places behind should be rounded.

Examples:

0.001 -> 0.001
0.00367 -> 0.004
0.00337 -> 0.003
0.000000564 -> 0.0000006
0.00000432907543029 -> 0.000004

Currently I have the following procedure:

if (value < (decimal) 0.01)

 value = Math.Round(value, 4);

Note:

numbers will always be positive

the number of significant digits will always be 1

values larger 0.01 will always be rounded to two decimal places, hence the if < 0.01

As you can see from the examples above, a rounding to 4 Decimal places might not be enough and the value might vary greatly.

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

3

Have a look here: round-a-double-to-x-significant-figures
â€“Â Aaron Hayman
49 mins ago

1

@AaronHayman: This is decimal rather than double, and the number of significant digits isn't necessarily known - I suspect the OP doesn't want to round 123.456 to 100 for example. (Although we'll see...)
â€“Â Jon Skeet
48 mins ago

What do you want to do for values that aren't between -1 and 1? For example, what would the result for 123.456 be?
â€“Â Jon Skeet
47 mins ago

The number of significant figures is surely one, from the description. I didn't say the link is the answer, but it does provides useful information to solving the problem
â€“Â Aaron Hayman
44 mins ago

add a commentÂ |Â

up vote
7
down vote

favorite

I want to shorten a number to the first decimal position that is not null. The Decimal places behind should be rounded.

Examples:

0.001 -> 0.001
0.00367 -> 0.004
0.00337 -> 0.003
0.000000564 -> 0.0000006
0.00000432907543029 -> 0.000004

Currently I have the following procedure:

if (value < (decimal) 0.01)

 value = Math.Round(value, 4);

Note:

numbers will always be positive

the number of significant digits will always be 1

values larger 0.01 will always be rounded to two decimal places, hence the if < 0.01

As you can see from the examples above, a rounding to 4 Decimal places might not be enough and the value might vary greatly.

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

I want to shorten a number to the first decimal position that is not null. The Decimal places behind should be rounded.

Examples:

0.001 -> 0.001
0.00367 -> 0.004
0.00337 -> 0.003
0.000000564 -> 0.0000006
0.00000432907543029 -> 0.000004

Currently I have the following procedure:

if (value < (decimal) 0.01)

 value = Math.Round(value, 4);

Note:

numbers will always be positive

the number of significant digits will always be 1

values larger 0.01 will always be rounded to two decimal places, hence the if < 0.01

As you can see from the examples above, a rounding to 4 Decimal places might not be enough and the value might vary greatly.

c# math decimal rounding

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

edited 27 mins ago

Chris

23k35981

edited 27 mins ago

Chris

23k35981

edited 27 mins ago

Chris

23k35981

asked 55 mins ago

julian bechtold

856

asked 55 mins ago

julian bechtold

856

asked 55 mins ago

julian bechtold

856

3

Have a look here: round-a-double-to-x-significant-figures
â€“Â Aaron Hayman
49 mins ago

1

@AaronHayman: This is decimal rather than double, and the number of significant digits isn't necessarily known - I suspect the OP doesn't want to round 123.456 to 100 for example. (Although we'll see...)
â€“Â Jon Skeet
48 mins ago

What do you want to do for values that aren't between -1 and 1? For example, what would the result for 123.456 be?
â€“Â Jon Skeet
47 mins ago

The number of significant figures is surely one, from the description. I didn't say the link is the answer, but it does provides useful information to solving the problem
â€“Â Aaron Hayman
44 mins ago

add a commentÂ |Â

3

Have a look here: round-a-double-to-x-significant-figures
â€“Â Aaron Hayman
49 mins ago

1

@AaronHayman: This is decimal rather than double, and the number of significant digits isn't necessarily known - I suspect the OP doesn't want to round 123.456 to 100 for example. (Although we'll see...)
â€“Â Jon Skeet
48 mins ago

What do you want to do for values that aren't between -1 and 1? For example, what would the result for 123.456 be?
â€“Â Jon Skeet
47 mins ago

The number of significant figures is surely one, from the description. I didn't say the link is the answer, but it does provides useful information to solving the problem
â€“Â Aaron Hayman
44 mins ago

Have a look here: round-a-double-to-x-significant-figures
â€“Â Aaron Hayman
49 mins ago

@AaronHayman: This is decimal rather than double, and the number of significant digits isn't necessarily known - I suspect the OP doesn't want to round 123.456 to 100 for example. (Although we'll see...)
â€“Â Jon Skeet
48 mins ago

What do you want to do for values that aren't between -1 and 1? For example, what would the result for 123.456 be?
â€“Â Jon Skeet
47 mins ago

The number of significant figures is surely one, from the description. I didn't say the link is the answer, but it does provides useful information to solving the problem
â€“Â Aaron Hayman
44 mins ago

add a commentÂ |Â

4 Answers
4

active

oldest

votes

up vote
10
down vote

accepted

You can try to declare precision and use a loop to get first precision value, then use Math.Round

static decimal GetValue(decimal input) 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

I would write an extehnsion method for this function.

public static class FloatExtension

 public static decimal ByFirstPrecision(this decimal input)
 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

then use like

decimal input = 0.00001;
input.ByFirstPrecision();

c# online

Result

(-0.001m).ByFirstPrecision() -0.001
(-0.00367m).ByFirstPrecision() -0.004
(0.000000564m).ByFirstPrecision() 0.0000006
(0.00000432907543029m).ByFirstPrecision() 0.000004

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

1

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

1

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

add a commentÂ |Â

up vote
1
down vote

var value = 0.000000564;

int cnt = 0;
bool hitNum = false;
var tempVal = value;
while (!hitNum)

 if(tempVal > 1)
 
 hitNum = true;
 
 else
 
 tempVal *= 10;
 cnt++;
 


var newValue = (decimal)Math.Round(value, cnt);

answered 34 mins ago

ManishM

25715

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

add a commentÂ |Â

up vote
0
down vote

Something like that ?

 public decimal SpecialRound(decimal value) 
 
 int posDot = value.ToString().IndexOf('.'); // Maybe use something about cultural (in Fr it's ",")
 if(posDot == -1)
 return value;

 int posFirstNumber = value.ToString().IndexOfAny(new char[9] '1', '2', '3', '4', '5', '6', '7', '8', '9', posDot);

 return Math.Round(value, posFirstNumber);

answered 37 mins ago

Benjamin K

5818

add a commentÂ |Â

up vote
0
down vote

Another approach

 decimal RoundToFirstNonNullDecimal(decimal value)
 
 var nullDecimals = value.ToString().Split('.').LastOrDefault()?.TakeWhile(c => c == '0').Count();
 return !nullDecimals.HasValue

Result

 Console.WriteLine(RoundToFirstNonNullDecimal(0.001m)); 0.001
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00367m)); 0.004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.000000564m)); 0.0000006
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00000432907543029m)); 0.000004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.12m)); 0.12
 Console.WriteLine(RoundToFirstNonNullDecimal(1.232m)); 1.232
 Console.WriteLine(RoundToFirstNonNullDecimal(7)); 7

answered 12 mins ago

crazy_p

424

add a commentÂ |Â

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);

);

draft saved

draft discarded

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f52440913%2fround-a-decimal-to-the-first-decimal-position-that-is-not-zero%23new-answer', 'question_page');

);

Post as a guest

Name

4 Answers
4

active

oldest

votes

4 Answers
4

active

oldest

votes

up vote
10
down vote

accepted

You can try to declare precision and use a loop to get first precision value, then use Math.Round

static decimal GetValue(decimal input) 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

I would write an extehnsion method for this function.

public static class FloatExtension

 public static decimal ByFirstPrecision(this decimal input)
 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

then use like

decimal input = 0.00001;
input.ByFirstPrecision();

c# online

Result

(-0.001m).ByFirstPrecision() -0.001
(-0.00367m).ByFirstPrecision() -0.004
(0.000000564m).ByFirstPrecision() 0.0000006
(0.00000432907543029m).ByFirstPrecision() 0.000004

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

1

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

1

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

add a commentÂ |Â

up vote
10
down vote

accepted

You can try to declare precision and use a loop to get first precision value, then use Math.Round

static decimal GetValue(decimal input) 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

I would write an extehnsion method for this function.

public static class FloatExtension

 public static decimal ByFirstPrecision(this decimal input)
 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

then use like

decimal input = 0.00001;
input.ByFirstPrecision();

c# online

Result

(-0.001m).ByFirstPrecision() -0.001
(-0.00367m).ByFirstPrecision() -0.004
(0.000000564m).ByFirstPrecision() 0.0000006
(0.00000432907543029m).ByFirstPrecision() 0.000004

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

1

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

1

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

add a commentÂ |Â

up vote
10
down vote

accepted

You can try to declare precision and use a loop to get first precision value, then use Math.Round

static decimal GetValue(decimal input) 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

I would write an extehnsion method for this function.

public static class FloatExtension

 public static decimal ByFirstPrecision(this decimal input)
 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

then use like

decimal input = 0.00001;
input.ByFirstPrecision();

c# online

Result

(-0.001m).ByFirstPrecision() -0.001
(-0.00367m).ByFirstPrecision() -0.004
(0.000000564m).ByFirstPrecision() 0.0000006
(0.00000432907543029m).ByFirstPrecision() 0.000004

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

You can try to declare precision and use a loop to get first precision value, then use Math.Round

static decimal GetValue(decimal input) 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

I would write an extehnsion method for this function.

public static class FloatExtension

 public static decimal ByFirstPrecision(this decimal input)
 
 int precision = 0;
 var val = input;
 while (Math.Abs(val) < 1)
 
 val *= 10;
 precision++;
 
 return Math.Round(input, precision);

then use like

decimal input = 0.00001;
input.ByFirstPrecision();

c# online

Result

(-0.001m).ByFirstPrecision() -0.001
(-0.00367m).ByFirstPrecision() -0.004
(0.000000564m).ByFirstPrecision() 0.0000006
(0.00000432907543029m).ByFirstPrecision() 0.000004

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

edited 10 mins ago

answered 40 mins ago

D-Shih

17.1k51127

answered 40 mins ago

D-Shih

17.1k51127

answered 40 mins ago

D-Shih

17.1k51127

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

1

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

1

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

add a commentÂ |Â

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

1

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

1

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

Tank you, works beautiful!
â€“Â julian bechtold
34 mins ago

Note that this would require tweaking for negative values.
â€“Â Jon Skeet
30 mins ago

Math.Abs(val)<1?
â€“Â Access Denied
20 mins ago

@JonSkeet Thank for your point out:)
â€“Â D-Shih
18 mins ago

@AccessDenied Yes I think just compare absolute value
â€“Â D-Shih
17 mins ago

add a commentÂ |Â

up vote
1
down vote

var value = 0.000000564;

int cnt = 0;
bool hitNum = false;
var tempVal = value;
while (!hitNum)

 if(tempVal > 1)
 
 hitNum = true;
 
 else
 
 tempVal *= 10;
 cnt++;
 


var newValue = (decimal)Math.Round(value, cnt);

answered 34 mins ago

ManishM

25715

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

add a commentÂ |Â

up vote
1
down vote

var value = 0.000000564;

int cnt = 0;
bool hitNum = false;
var tempVal = value;
while (!hitNum)

 if(tempVal > 1)
 
 hitNum = true;
 
 else
 
 tempVal *= 10;
 cnt++;
 


var newValue = (decimal)Math.Round(value, cnt);

answered 34 mins ago

ManishM

25715

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

add a commentÂ |Â

up vote
1
down vote

var value = 0.000000564;

int cnt = 0;
bool hitNum = false;
var tempVal = value;
while (!hitNum)

 if(tempVal > 1)
 
 hitNum = true;
 
 else
 
 tempVal *= 10;
 cnt++;
 


var newValue = (decimal)Math.Round(value, cnt);

answered 34 mins ago

ManishM

25715

var value = 0.000000564;

int cnt = 0;
bool hitNum = false;
var tempVal = value;
while (!hitNum)

 if(tempVal > 1)
 
 hitNum = true;
 
 else
 
 tempVal *= 10;
 cnt++;
 


var newValue = (decimal)Math.Round(value, cnt);

answered 34 mins ago

ManishM

25715

answered 34 mins ago

ManishM

25715

answered 34 mins ago

ManishM

25715

answered 34 mins ago

ManishM

25715

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

add a commentÂ |Â

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

Look at other answer ;-)
â€“Â Tim Schmelter
31 mins ago

add a commentÂ |Â

up vote
0
down vote

Something like that ?

 public decimal SpecialRound(decimal value) 
 
 int posDot = value.ToString().IndexOf('.'); // Maybe use something about cultural (in Fr it's ",")
 if(posDot == -1)
 return value;

 int posFirstNumber = value.ToString().IndexOfAny(new char[9] '1', '2', '3', '4', '5', '6', '7', '8', '9', posDot);

 return Math.Round(value, posFirstNumber);

answered 37 mins ago

Benjamin K

5818

add a commentÂ |Â

up vote
0
down vote

Something like that ?

 public decimal SpecialRound(decimal value) 
 
 int posDot = value.ToString().IndexOf('.'); // Maybe use something about cultural (in Fr it's ",")
 if(posDot == -1)
 return value;

 int posFirstNumber = value.ToString().IndexOfAny(new char[9] '1', '2', '3', '4', '5', '6', '7', '8', '9', posDot);

 return Math.Round(value, posFirstNumber);

answered 37 mins ago

Benjamin K

5818

add a commentÂ |Â

up vote
0
down vote

Something like that ?

 public decimal SpecialRound(decimal value) 
 
 int posDot = value.ToString().IndexOf('.'); // Maybe use something about cultural (in Fr it's ",")
 if(posDot == -1)
 return value;

 int posFirstNumber = value.ToString().IndexOfAny(new char[9] '1', '2', '3', '4', '5', '6', '7', '8', '9', posDot);

 return Math.Round(value, posFirstNumber);

answered 37 mins ago

Benjamin K

5818

Something like that ?

 public decimal SpecialRound(decimal value) 
 
 int posDot = value.ToString().IndexOf('.'); // Maybe use something about cultural (in Fr it's ",")
 if(posDot == -1)
 return value;

 int posFirstNumber = value.ToString().IndexOfAny(new char[9] '1', '2', '3', '4', '5', '6', '7', '8', '9', posDot);

 return Math.Round(value, posFirstNumber);

answered 37 mins ago

Benjamin K

5818

answered 37 mins ago

Benjamin K

5818

answered 37 mins ago

Benjamin K

5818

answered 37 mins ago

Benjamin K

5818

add a commentÂ |Â

up vote
0
down vote

Another approach

 decimal RoundToFirstNonNullDecimal(decimal value)
 
 var nullDecimals = value.ToString().Split('.').LastOrDefault()?.TakeWhile(c => c == '0').Count();
 return !nullDecimals.HasValue

Result

 Console.WriteLine(RoundToFirstNonNullDecimal(0.001m)); 0.001
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00367m)); 0.004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.000000564m)); 0.0000006
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00000432907543029m)); 0.000004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.12m)); 0.12
 Console.WriteLine(RoundToFirstNonNullDecimal(1.232m)); 1.232
 Console.WriteLine(RoundToFirstNonNullDecimal(7)); 7

answered 12 mins ago

crazy_p

424

add a commentÂ |Â

up vote
0
down vote

Another approach

 decimal RoundToFirstNonNullDecimal(decimal value)
 
 var nullDecimals = value.ToString().Split('.').LastOrDefault()?.TakeWhile(c => c == '0').Count();
 return !nullDecimals.HasValue

Result

 Console.WriteLine(RoundToFirstNonNullDecimal(0.001m)); 0.001
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00367m)); 0.004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.000000564m)); 0.0000006
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00000432907543029m)); 0.000004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.12m)); 0.12
 Console.WriteLine(RoundToFirstNonNullDecimal(1.232m)); 1.232
 Console.WriteLine(RoundToFirstNonNullDecimal(7)); 7

answered 12 mins ago

crazy_p

424

add a commentÂ |Â

up vote
0
down vote

Another approach

 decimal RoundToFirstNonNullDecimal(decimal value)
 
 var nullDecimals = value.ToString().Split('.').LastOrDefault()?.TakeWhile(c => c == '0').Count();
 return !nullDecimals.HasValue

Result

 Console.WriteLine(RoundToFirstNonNullDecimal(0.001m)); 0.001
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00367m)); 0.004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.000000564m)); 0.0000006
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00000432907543029m)); 0.000004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.12m)); 0.12
 Console.WriteLine(RoundToFirstNonNullDecimal(1.232m)); 1.232
 Console.WriteLine(RoundToFirstNonNullDecimal(7)); 7

answered 12 mins ago

crazy_p

424

Another approach

 decimal RoundToFirstNonNullDecimal(decimal value)
 
 var nullDecimals = value.ToString().Split('.').LastOrDefault()?.TakeWhile(c => c == '0').Count();
 return !nullDecimals.HasValue

Result

 Console.WriteLine(RoundToFirstNonNullDecimal(0.001m)); 0.001
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00367m)); 0.004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.000000564m)); 0.0000006
 Console.WriteLine(RoundToFirstNonNullDecimal(0.00000432907543029m)); 0.000004
 Console.WriteLine(RoundToFirstNonNullDecimal(0.12m)); 0.12
 Console.WriteLine(RoundToFirstNonNullDecimal(1.232m)); 1.232
 Console.WriteLine(RoundToFirstNonNullDecimal(7)); 7

answered 12 mins ago

crazy_p

424

answered 12 mins ago

crazy_p

424

answered 12 mins ago

crazy_p

424

answered 12 mins ago

crazy_p

424

add a commentÂ |Â

draft saved

draft discarded

draft saved

draft discarded

Post as a guest

Name

Search This Blog

Iyfjky