Timma, Tamma, Greeks

Timma

diff(-1.0/(2.0*p*s*v*t*Power[t,0.5]) * exp(-0.5*((a+0.5*v*v*t)/(v*Power[t,0.5]))*((a  +0.5*v*v*t)/(v*Power[t,0.5])))*(1.0-(a+0.5*v*v*t)*(a-0.5*v*v*t)/(v*v*t))) 

https://www.wolframalpha.com/

https://www.wolframalpha.com/input?i=diff

https://www.wolframalpha.com/input?i=diff%28-1.0%2F%282.0*p*s*v*t*Power%5Bt%2C0.5%5D%29+*+exp%28-0.5*%28%28a%2B0.5*v*v*t%29%2F%28v*Power%5Bt%2C0.5%5D%29%29*%28%28a++%2B0.5*v*v*t%29%2F%28v*Power%5Bt%2C0.5%5D%29%29%29*%281.0-%28a%2B0.5*v*v*t%29*%28a-0.5*v*v*t%29%2F%28v*v*t%29%29%29+

https://smart-lab.ru/blog/765460.php

https://en.wikipedia.org/wiki/Greeks_(finance)