Difference between revisions of "cpp/numeric/math/exp2"
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| − | + | {{cpp/title|exp2}} | |
| + | {{cpp/numeric/math/sidebar}} | ||
| + | {{ddcl list begin}} | ||
| + | {{ddcl list header | cmath}} | ||
| + | {{ddcl list item | notes={{mark c++11 feature}} | | ||
| + | double exp2( double n ); | ||
| + | }} | ||
| + | {{ddcl list item | notes={{mark c++11 feature}} | | ||
| + | float exp2( float n ); | ||
| + | }} | ||
| + | {{ddcl list item | notes={{mark c++11 feature}} | | ||
| + | long double exp2( long double n ); | ||
| + | }} | ||
| + | {{ddcl list end}} | ||
| − | + | Computes 2 raised to the given power {{tt|n}} | |
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| − | + | ===Parameters=== | |
| + | {{param list begin}} | ||
| + | {{param list item | n | floating point value}} | ||
| + | {{param list end}} | ||
| − | + | ===Return value=== | |
| − | + | ||
| − | + | 2 raised to the {{tt|n}} (i.e. {{tt|2<sup>n</sup>}}) | |
| − | 2 raised to the | + | |
If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned. | If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned. | ||
| − | + | ===See also=== | |
| − | + | ||
| − | + | {{dcl list begin}} | |
| − | + | {{dcl list template | cpp/numeric/math/dcl list exp}} | |
| − | + | {{dcl list template | cpp/numeric/math/dcl list log}} | |
| − | + | {{dcl list template | cpp/numeric/math/dcl list pow}} | |
| − | + | {{dcl list end}} | |
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Revision as of 04:42, 28 October 2011
Template:cpp/numeric/math/sidebar Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<cmath>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td >double exp2( double n );
</td>
<td class="t-dcl-nopad"> </td> <td > Template:mark c++11 feature </td> </tr> <tr class="t-dcl ">
<td >float exp2( float n );
</td>
<td class="t-dcl-nopad"> </td> <td > Template:mark c++11 feature </td> </tr> <tr class="t-dcl ">
<td >long double exp2( long double n );
</td>
<td class="t-dcl-nopad"> </td> <td > Template:mark c++11 feature </td> </tr> Template:ddcl list end
Computes 2 raised to the given power n
Parameters
| n | - | floating point value |
Return value
2 raised to the n (i.e. 2n)
If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
