CODEWITHSUNDEEP
functionwolfram-mathematicaconditional-statements
user950899
user950899

Reputation: 63

Multivariate Functions with Conditions in Mathematica

I'm trying to define a bivariate function that takes values depending on whether a condition is met. I make them work for univariate case but I'm stuck with the bivariate case:

g[x_, y_] := 10 /; x < 10
g[x_, y_] := 20 /; (x >= 10 && y < 5)
g[x_, y_] := -5 /; (x >= 10 && y >= 5);

This function never gives me the value of -5.

g[12,10] = 20?

Upvotes: 0

Views: 2480

Answers (1)

High Performance Mark
High Performance Mark

Reputation: 78344

This works for me:

Clear[g]
g[x_, y_] /; x < 10 := 10
g[x_, y_] /; x >= 10 \[And] y < 5 := 20
g[x_, y_] /; x >= 10 \[And] y >= 5 := -5

then

In[73]:= g[12, 10]

Out[73]= -5

Why this version works and your version doesn't I'm not sure. Perhaps someone else will come along and tell us

Upvotes: 2

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