In [11]:

    

import numpy
import matplotlib.pyplot as plt
%matplotlib inline
import math


    

In [37]:

    

# want
t1 = numpy.linspace(start=-1.0, stop=1.0, num=201)
wave1 = numpy.power(2.0,t1)

# approx:
# have
# 0.0   -> 0.0
# 0.5   -> 0.25
# 0.707 -> 0.5
# 1.0   -> 1.0
# 1.41  -> 2.0
# 2.0   -> 4.0
#t1 = numpy.linspace(start=0, stop=2.0, num=201)
# wave1 = numpy.multiply(t1,t1)
# want range.x = 2 -> range.y = 1.5
# -1.0 -> 0.5
#  0.0 -> 1.0
#  1.0 -> 2.0

t2 = numpy.linspace(start=math.sqrt(.5), stop=math.sqrt(2.0), num=201)
# meh: math.srqt(.5) + (math.sqrt(.5) / 2.0) != 1.0
wave2 = numpy.multiply(t2,t2)


    

In [38]:

    

plt.figure(figsize=(100, 40))
plt.plot(wave1)
plt.plot(wave2)
plt.show()


    

In [31]:

    

print(t2[0], '=', wave2[0])
print(t2[100], '=', wave2[100])
print(t2[200], '=', wave2[200])


    

    




0.707106781187 = 0.5
1.06066017178 = 1.125
1.41421356237 = 2.0

In [20]:

    

print(len(wave2))


    

    




201

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