Calculate the sum of numbers using the + operator or the Plus function:

In[1]:= 3+4+12+1 3+4+12+1
Out[1]= 20

In[2]:= Plus[9,2,1,13] Plus[9,2,1,13]
Out[2]= 25

Perform subtraction using the – operator or the Subtract function:

In[3]:= 4 - 100 - 1 4 - 100 - 1
Out[3]= -97

In[4]:= Subtract[17,11] Subtract[17,11]
Out[4]= 6

Demonstrate invalid usage of the Subtract function with more than two arguments:

In[5]:= Subtract[2,1,1] Subtract[2,1,1]
Subtract: Subtract called with 3 arguments; 2 arguments are expected.
Out[5]= Subtract[2,1,1]

Multiply numbers using the * operator or the Times function:

In[6]:= 3*7*1*11 3*7*1*11
Out[6]= 231

In[7]:= Times[11,7,2] Times[11,7,2]
Out[7]= 154

You can also multiply numbers by placing a space between them. The multiplication notation \(\times\) will appear automatically:

In[8]:= 22 × 3 × 5 22 3 5
Out[8]= 330

Perform division using the / operator or the Divide function:

In[9]:= 100/2 100/2
Out[9]= 50

In[10]:= Divide[45,5] Divide[45,5]
Out[10]= 9

You can also perform division by typing a fraction in display math mode using Ctrl + /:

In[11]:= \(\frac{60}{3}\) 60/3
Out[11]= 20

Type “Esc” followed by “div” and “Esc” again to enter the division notation ÷:

In[12]:= 77÷11 77÷11
Out[12]= 7

Demonstrate invalid usage of the Divide function with more than two arguments:

In[13]:= Divide[1000,100,20] Divide[1000,100,20]
Divide: Divide called with 3 arguments; 2 arguments are expected.
Out[13]= Divide[1000,100,20]

When dividing by zero in Mathematica, the result is a symbolic representation of infinity:

In[14]:= 11/0 11/0
Power: Infinite expression \(\dfrac{1}{0}\) encountered.
Out[14]= ComplexInfinity

Perform exponentiation using the ^ operator or the Power function:

In[15]:= 2^3 2^3
Out[15]= 8

In[16]:= Power[2,4] Power[2,4]
Out[16]= 16

You can also perform exponentiation by typing a power as superscript using Ctrl + 6:

In[17]:= \(3^{2}\) 3^2
Out[17]= 9

You can combine functions like Plus or Subtract with operators such as + or * seamlessly:

In[18]:= Plus[1+2,3*4] Plus[1+2,3*4]
Out[18]= 15

In[19]:= Plus[1, 2]+Subtract[3,4] Plus[1, 2]+Subtract[3,4]
Out[19]= 2

In[20]:= Subtract[100^2, Divide[4*25,5]+1] Subtract[100^2, Divide[4*25,5]+1]
Out[20]= 9979

Perform subtraction using the – operator or the Subtract function:

In[3]:= 4 - 100 - 1 4 - 100 - 1
Out[3]= -97

In[4]:= Subtract[17, 11] Subtract[17, 11]
Out[4]= 6

Perform subtraction using the – operator or the Subtract function:

In[3]:= 4-100-1 4-100-1
Out[3]= -97

In[4]:= Subtract[17, 11] Subtract[17, 11]
Out[4]= 6

Determine the type of different numerical values using the Head command:

In[1]:= Head[-11] Head[-11]
Out[1]= Integer

In[2]:= Head[22/7] Head[22/7]
Out[2]= Rational

In[3]:= Head[3.14] Head[3.14]
Out[3]= Real

Use I to represent the imaginary unit, satisfying \(i^{2}=-1\):

In[4]:= Head[7-11I] Head[7-11I]
Out[4]= Complex

Calculate the sum of numbers using the + operator or the Plus function:

In[1]:= 3+4+12+1 3+4+12+1
Out[1]= 20

In[2]:= Plus[9, 2, 1, 13] Plus[9, 2, 1, 13]
Out[2]= 25

Calculate the sum of numbers using the + operator or the Plus function:

In[1]:= 3+4+12+1 3+4+12+1
Out[1]= 20

In[2]:= Plus[9, 2, 1, 13] Plus[9, 2, 1, 13]
Out[2]= 25

Calculate the sum of numbers using the + operator or the Plus function:

In[1]:= 3+4+12+1 3+4+12+1
Out[1]= 20

In[2]:= Plus[9, 2, 1, 13] Plus[9, 2, 1, 13]
Out[2]= 25

Calculate the sum of numbers using the + operator or the Plus function:

In[1]:= 3+4+12+1 3+4+12+1
Out[1]= 20

In[2]:= Plus[9, 2, 1, 13] Plus[9, 2, 1, 13]
Out[2]= 25