How can I write this code in Pseudocode, I am struggling.

I am quite unsure of how I can write this code into PseudoCode

function [t,cp]=CpRange(tmin,tmax,inc)
inc=round(inc,3);%rounding to 3 decimal points
t=tmin:inc:tmax;
cp=zeros(size(t));
R=.1889;
idx = t>=300 & t<=1000;
cp(idx) = 0.24007797e+01 ...
    +0.87850957e-02*t(idx) ...
    -0.6607878e-05*t(idx).^2 ...
    +0.20021861e-08*t(idx).^3 ...
    +0.63274039e-15*t(idx).^4;
idx = t>1000 & t<=3000;
cp(idx) = 0.44080e+1 ...
    +0.309817e-02*t(idx) ...
    -0.123925e-05.^t(idx).^2 ...
    +0.227413e-09*t(idx).^3 ...
    -0.155259e-13+t(idx).^3;
cp=cp*R;