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| Release 4.0 |
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Operators - *
| Operator : | * - multiplication |
| Unary / binary: | Binary |
| Prefix / infix: | Infix |
| Input data type |
Output data type |
Description |
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| real*real |
real |
Calculates a*b |
| real*complex |
complex |
3*(1+2i)=3+6i |
| real*vector |
vector |
2*(4,4,1)=(8,8,2) |
| real*quaternion |
quaternion |
2*(4,4,1,1)=(8,8,2,2) |
| complex*real |
complex |
(2+3i)*2=(4+6i) |
| complex*complex |
complex |
complex multiplication |
| complex*quaternion |
quaternion |
complex will be converted to quaternion, then quaternion multiplication |
| vector*real |
vector |
(2,2,3)*3=(6,6,9) |
| vector*vector |
real |
scalar vector multiplication, i.e. (2,2,3)*(1,2,3) = 2*1+2*2+3*3 = 2+4+9 = 15 |
| quaternion*real |
quaternion |
(1,2,3,4)*2=(2,4,6,8) |
| quaternion*complex |
quaternion |
complex will be converted to quaternion, then quaternion multiplication |
| quaternion*quaternion |
quaternion |
standard quaternion multiplication |
| real*color |
color |
3*(0.2,0.3,0.3)=(0.6,0.9,0.9) |
| color*real |
color |
(0.2,0.3,0.3)*3=(0.6,0.9,0.9) |
Notes:
This operator multiplicates the two operands. The data type of the result is real, if both operands are either int or real. If at least one operand is complex, the result is stored as a complex number.
If at least one operand is a quaternion number, the result is stored as a quaternion number. An exception is the datatype vector: If two vectors are multiplied, the scalar product is calculated.
This operator can also multiply a color with a real number: In that case each component of the color is multiplied with the number.
Examples:
3*4
x*y
2*rgba(0.2, 0.4, 0.5, 1.0) = rgba(0.4, 0.8, 1.0, 2.0)
rgba(0.2, 0.4, 0.5, 1.0)*2 = rgba(0.4, 0.8, 1.0, 2.0)
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