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< title > 0.9.6: GLM_GTX_fast_square_root< / title >
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< div class = "title" > GLM_GTX_fast_square_root< div class = "ingroups" > < a class = "el" href = "a00159.html" > GTX Extensions (Experimental)< / a > < / div > < / div > < / div >
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< tr class = "memitem:ga903878071f92e51e551791e584a171a1" > < td class = "memTemplItemLeft" align = "right" valign = "top" > GLM_FUNC_DECL vecType< T, P >   < / td > < td class = "memTemplItemRight" valign = "bottom" > < a class = "el" href = "a00195.html#ga903878071f92e51e551791e584a171a1" > fastInverseSqrt< / a > (vecType< T, P > const & x)< / td > < / tr >
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< / table >
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< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
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< p > Fast but less accurate implementations of square root based functions. < / p >
< ul >
< li > Sqrt optimisation based on Newton's method, www.gamedev.net/community/forums/topic.asp?topic id=139956< / li >
< / ul >
< p > < < a class = "el" href = "a00026.html" title = "OpenGL Mathematics (glm.g-truc.net) " > glm/gtx/fast_square_root.hpp< / a > > need to be included to use these functionalities. < / p >
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< h2 class = "groupheader" > Function Documentation< / h2 >
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< a class = "anchor" id = "gaac333418d0c4e0cc6d3d219ed606c238" > < / a >
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< td class = "memname" > GLM_FUNC_DECL genType glm::fastDistance < / td >
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< td > (< / td >
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< td class = "paramtype" > genType  < / td >
< td class = "paramname" > < em > x< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
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< td > < / td >
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< td class = "paramtype" > genType  < / td >
< td class = "paramname" > < em > y< / em >   < / td >
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< / tr >
< tr >
< td > < / td >
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< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common distance function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
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< a class = "anchor" id = "ga6d1ac559cd77d69119e30c3aca0e14b5" > < / a >
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< td class = "memname" > GLM_FUNC_DECL T glm::fastDistance < / td >
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< td > (< / td >
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< td class = "paramtype" > vecType< T, P > const &   < / td >
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< td class = "paramname" > < em > x< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
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< td > < / td >
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< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > y< / em >   < / td >
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< / tr >
< tr >
< td > < / td >
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< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common distance function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
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< td class = "memname" > GLM_FUNC_DECL genType glm::fastInverseSqrt < / td >
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< td > (< / td >
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< td class = "paramtype" > genType  < / td >
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< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common inversesqrt function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
< / div >
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< a class = "anchor" id = "ga903878071f92e51e551791e584a171a1" > < / a >
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< td class = "memname" > GLM_FUNC_DECL vecType< T, P> glm::fastInverseSqrt < / td >
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< td > (< / td >
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< td class = "paramtype" > vecType< T, P > const &   < / td >
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< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common inversesqrt function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
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< td class = "memname" > GLM_FUNC_DECL genType glm::fastLength < / td >
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< td > (< / td >
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< td class = "paramtype" > genType  < / td >
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< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common length function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
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< td class = "memname" > GLM_FUNC_DECL T glm::fastLength < / td >
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< td > (< / td >
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< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common length function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
< / div >
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< a class = "anchor" id = "ga3b02c1d6e0c754144e2f1e110bf9f16c" > < / a >
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< td class = "memname" > GLM_FUNC_DECL genType glm::fastNormalize < / td >
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< td > (< / td >
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< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Faster than the common normalize function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
< / div >
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< td class = "memname" > GLM_FUNC_DECL genType glm::fastSqrt < / td >
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< td > (< / td >
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< td class = "paramtype" > genType  < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
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< / div > < div class = "memdoc" >
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< p > Faster than the common sqrt function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / div >
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< a class = "anchor" id = "gaad9f601bbc3faa04dda384e4c4e1592c" > < / a >
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< td class = "memname" > GLM_FUNC_DECL vecType< T, P> glm::fastSqrt < / td >
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< td > (< / td >
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< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
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< / div > < div class = "memdoc" >
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< p > Faster than the common sqrt function but less accurate. < / p >
< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "a00195.html" title = "Fast but less accurate implementations of square root based functions. " > GLM_GTX_fast_square_root< / a > extension. < / dd > < / dl >
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< / a > 1.8.8
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