I am trying to mod an effect with the equation, 0.3*x^0.25-0.15*x. It does not work. Plotting software says it should look like this:
What I get is this:
Not only too small, but decaying to 0.
If I remove the ‘0.3’ multiplier ‘eq=x^0.25-0.15*x’ it gives the correct shape:
If I rearrange it to ‘0-(0.5*x)+x^0.25’ I get this, which is laughably wrong:
I cannot figure out for the life of me what’s going on. Help.
I assume these are what happened.
It seems using multiple Xs is okay but calculation of equations has an order.
[var0] {operator0} ( [var1] {operator1} [var2] ) {operator2} [var3] …
An equation will be processed in order of op1 - op2 - … - op0. So I guess these were your actual equations.
0.3 * ( x ^ 0.25 - x ) * 0.15
x ^ ( ( 0.25 - x ) * 0.15 )
0 - ( 0.5 * x + x ) ^ 0.25
Therefore, I think you will get what you want by using this equation instead.
x*(x^-0.75)*0.3-0.15
Therefore, I think you will get what you want by using this equation instead.
x*(x^-0.75)*0.3-0.15
Thank you! That worked. A weird way of writing it though!
…well, I thought it worked, but when the policy is set to 0 it shoots to infinity (or more accurately “-1.#J%”) rather than 0. So that’s a fun new problem.
Ohhhhh my bad. forgot that div by zero. the simplest take would be modifying it to x*(x+0.001)^-0.75*0.3-0.15 but not sure how many operators are allowed so it will need further experimentation.
