Modern Math Mul

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Mul

Multiplies two vectors component by component.

Syntax

Mul( byref a as Vec3, byref b as Vec3 ) as Vec3

Notes

• The Hadamard product: each component times the matching one. It is not the dot product and not the cross product.
• It is spelled as a named function rather than * because * between two vectors has no single agreed meaning, and picking one silently would be a trap.
• Used for per-channel colour modulation and for non-uniform scaling.

Examples

#import "std/numeric"
using numeric

dim as Vec3 a = type<Vec3>( 1, 2, 3 ), b = type<Vec3>( 4, 5, 6 )

dim as Vec3 c = Mul( a, b )
print c.x & " " & c.y & " " & c.z             '' 4 10 18

'' NOT the dot product, which is a scalar
print Dot( a, b )            '' 32

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Library: Math Library
Category: Math Library
Documented under: Members