Python math.tanh() method “returns the hyperbolic tangent value of a number.”
Syntax
math.tanh(var)Parameters
var: It takes values of numeric datatype and throws a TypeError if the argument of any other data type is passed.
Return Value
It returns the hyperbolic tangent value of the number in the float datatype.
If the number argument is a positive or negative number, the tanh() function returns the hyperbolic Tangent value.
If the number argument is not a number, the tanh function returns TypeError.
Example 1: How to Use math.tanh() Method
import math
a1 = 0.3
b1 = 0.9
c1 = 0.7
d1 = 0.2
print("Value for parameter ", a1, " is ", math.tanh(a1))
print("Value for parameter ", b1, " is ", math.tanh(b1))
print("Value for parameter ", c1, " is ", math.tanh(c1))
print("Value for parameter ", d1, " is ", math.tanh(d1))Output
Value for parameter 0.3 is 0.2913126124515909
Value for parameter 0.9 is 0.7162978701990245
Value for parameter 0.7 is 0.6043677771171635
Value for parameter 0.2 is 0.197375320224904Example 2: TypeError: must be a real number, not str
import math
x = 'h'
print(math.tanh(x))Output
TypeError: must be a real number, not strExample 3: Plotting the math.tanh() Method
import matplotlib.pyplot as plt
import math
# Create a list of x values from -2 to 2
x = [i * 0.01 for i in range(-200, 201)]
# Calculate the corresponding y values
y = [math.tanh(i) for i in x]
# Create a new figure
plt.figure()
# Plot x against y
plt.plot(x, y)
# Set the title
plt.title('Plot of tanh(x)')
# Set the x and y axis labels
plt.xlabel('x')
plt.ylabel('tanh(x)')
# Display the plot
plt.show()
Output
That’s it.
Ankit Lathiya is a Master of Computer Application by education and Android and Laravel Developer by profession and one of the authors of this blog. He is also expert in JavaScript and Python development.
