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cwVectOps.h : Added urand() and sum_sq().

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This commit is contained in:
kevin 2025-03-10 19:58:48 -04:00
parent b6685340c8
commit c69a9819ae
1 changed files with 22 additions and 1 deletions
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23
cwVectOps.h
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@ -72,7 +72,7 @@ namespace cw
template< typename T >
void zero( T* v, unsigned n )
{ fill(v,n,0); }
{ fill(v,n,(T)0); }
template< typename T >
void ones( T* v, unsigned n )
@ -379,6 +379,17 @@ namespace cw
return beg + (incr*i);
}
template< typename T >
T* urand( T* y, unsigned yN, const T& min_val, const T& max_val )
{
unsigned i = 0;
for(; i<yN; ++i)
y[i] = min_val + (T)((double)(std::rand() * (max_val-min_val)) / RAND_MAX);
return y;
}
template< typename T >
T sum( const T* v, unsigned n )
{
@ -419,6 +430,16 @@ namespace cw
return sum;
}
template< typename T0 >
T0 sum_sq( const T0* v, unsigned n )
{
T0 sum = 0;
for(unsigned i=0; i<n; ++i)
sum += v[i] * v[i];
return sum;
}
//==================================================================================================================
// Statistics