My First Blog

Test:

It is an equation in display mode

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{% katex a} E = m c^2 {% endkatex %}

$E = m c^2$

$$E = m c^2$$

This is an inline equation

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{% katex [displayMode] %} E = m c^2{% endkatex %}

$ a $

This is a code

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class :
    pass
if __name__ == '__main__':
    
    print 'hello world'