The question is "Find the volume of the solid bounded by the coordinate planes x=0, y=0, z=0 and the plane x+2y+3z=1". Please check my code if the volume value is correct.

syms x y z
f= (1-x-2*y)/3

f = 

int(int(int(1,z,0,f),y,0,-x/2),x,0,1)

ans = 

Unrecognized function or variable 'viewSolid'.

Answer 1

[Walter Roberson]

The function name is viewSolid with a capital S, and it is not part of MATLAB; you need to get it from somewhere such as

http://www2.math.umd.edu/~jmr/241/mfiles/viewSolid.m

Answer 2

[Image Analyst]

I gave some hints here.

https://www.mathworks.com/matlabcentral/answers/1621570-can-someone-help-me-with-this#answer_867210

I guess @Abinesh R is your classmate since the problem is the same.

You have a negative volume, which isn't right..

I'm getting

volume =

0.027787

[Abinesh R]

Oh i got the same answer. I used this code and got 1/36 as the answer.

clc
clear all
syms x y z
int(int((1/3)*(1-x-2*y),y,0,(1-x)/2),x,0,1)