MathMod

On Wednesday (Sept. 10), researchers presented a study that describes how Perseverance found intriguing minerals on the western edge of Jezero Crater, in the clay-rich, mudstone rocks of a valley called "Neretva Vallis."

"When we see features like this in sediment on Earth, these minerals are often the byproduct of microbial metabolisms that are consuming organic matter," Joel Hurowitz, a planetary scientist at Stony Brook University in New York and lead author of the new study, said during a NASA press conference held on Wednesday.
https://www.space.com/astronomy/mars/did-nasas-perseverance-rover-find-evidence-of-ancient-red-planet-life-the-plot-thickens -comments

SEASHELLS: THE PLAINNESS AND BEAUTY OF THEIR MATHEMATICAL DESCRIPTION:
http://www.mat.uc.pt/~picado/conchas/eng/article.pdf?fbclid=IwY2xjawIRuHVleHRuA2FlbQIxMAABHdYY1AguGNrPs42vlkq9VgIhTzeWqN2yFkl_gX2n_aq_dKVenXjWKwxY6A_aem_GfE_aEosz-nRy_8I3mMG-w

MathMod download:
https://sourceforge.net/projects/mathmod/files/
MathMod script:
{
"Param3D": {
"Description ": ["Wentletrap_Shell Parametric surface by Abderrahman Taha 09/02/2025"],
"Component": ["Wentletrap_Shell"],
"Const": ["a=20",
"b=20",
"d=1",
"aa=90",
"mu=5*pi/180",
"alpha=86*pi/180",
"beta=10*pi/180",
"omega=1*pi/180",
"phi=-45*pi/180",
"ll=4",
"p=6",
"w1=60",
"w2=0.14",
"n=8"],
"Funct": ["l=((2*pi)/n)*((n*u/(2*pi))-int(n*u/(2*pi)))",
"k=if(w1=0|w2=0|n=0,0,ll*exp(-(2*(u-p)/w1)^2-(2*l(u,v,t)/w2)^2))",
"h=(1/(sqrt((cos(u)/a)^2+(sin(u)/b)^2)))+k(u,v,t)",
"h=h(v,u,t)",
"fx=d*(aa*sin(beta)*cos(u)+h(v,u,t)*(cos(v+phi)*cos(u+omega)-sin(mu)*sin(v+phi)*sin(u+omega)))*exp(u*cot(alpha))",
"fy=(-aa*sin(beta)*sin(u)-h(v,u,t)*(cos(v+phi)*sin(u+omega)+sin(mu)*sin(v+phi)*cos(u+omega)))*exp(u*cot(alpha))",
"fz=(-aa*cos(beta)+h(v,u,t)*sin(v+phi)*cos(mu))*exp(u*cot(alpha))"],
"Fx": ["fx(u,v,t)"],
"Fy": ["fy(u,v,t)"],
"Fz": ["fz(u,v,t)"],
"Name": ["Wentletrap_Shell"],
"Umax": ["4*pi"],
"Umin": ["-16*pi"],
"Vmax": ["pi*90/180"],
"Vmin": ["-pi*270/180"]
}
}