# Value

## Description

This function converts a string number to double. It is a more limited version of Origin C's atof() function and is provided for compatibility with Excel.

## Syntax

double Value(string str)

## Parameters

str

is the string that you want to convert to double.

## Return

Return the double value that has been converted to double. From Origin2019, percent is also supported.

## Example

string str1$= "+.50"; double dstr1 = Value(str1$);
dstr1 = ;//should be "0.5"
string str2$= "50%"; double dstr2 = Value(str2$);
dstr2 = ;//should be "0.5"