How to calculate YTM by calculator

use law of indices.

Example.if wanna find (1.1)^4.then.in normal calculator,take square of 1.1 and again take square of it.

Now if u want (1.1)^3.just divide my 1.1.

Pls help me to resolve below equation of YTM by using calaculater (Simple Calculator) (not Scientic calculator) & not table:-

981.05%=95/(1+YTM^1)+95/(1+YTM^2)+95/(1+YTM^3)