Is there a constructive discontinuous exponential function?
69724
Is Zorn's lemma necessary to show discontinuous $f\colon {\mathbb R} \to {\mathbb R}$ satisfying $f(x+y) = f(x) + f(y)$?
108997
Continuous functions that attain local extrema at every point
85157
Does a smooth "transition function" with bounded derivatives exist?
135641
Algebraic independence of exponentials
41847
Uniformly continuous function with unbounded variation
53376
A continuous, nowhere differentiable but invertible function?
130120
Orders of Growth between Polynomial and Exponential
38886
Discontinuous function on Q
98696
Is the exponential map ever not injective?
92157
How create an exponential equation with points? (natural exponential)
84890
Extremising a functional with conditions
58816
Existence of a continuous function which does not achieve a maximum.
24449
How discontinuous can a derivative be?
115878
Continuous unbounded but integrable functions
51886
Soft version of the maximum function?
40160
asymmetric errors with exponential
62817
Functions which are Continuous, but not Bicontinuous