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exp.3Cg
Langue: en
Version: 345301 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
exp - returns the base-e exponential of scalars and vectorsSYNOPSIS
float exp(float a); float1 exp(float1 a); float2 exp(float2 a); float3 exp(float3 a); float4 exp(float4 a);
half exp(half a); half1 exp(half1 a); half2 exp(half2 a); half3 exp(half3 a); half4 exp(half4 a);
fixed exp(fixed a); fixed1 exp(fixed1 a); fixed2 exp(fixed2 a); fixed3 exp(fixed3 a); fixed4 exp(fixed4 a);
PARAMETERS
- a
- Vector or scalar of which to determine the base-e exponential. The value e is approximately 2.71828182845904523536.
DESCRIPTION
Returns the base-e exponential a.For vectors, the returned vector contains the base-e exponential of each element of the input vector.
REFERENCE IMPLEMENTATION
float3 exp(float3 a) { float3 rv; int i;
for (i=0; i<3; i++) { rv[i] = exp(a[i]); // this is the ANSI C standard library exp() } return rv; }exp is typically implemented with either a native base-2 exponentional instruction or pow.
PROFILE SUPPORT
exp is fully supported in all profiles unless otherwise specified.Support in the fp20 is limited to constant compile-time evaluation.
SEE ALSO
exp2, log, powContenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre