/* txhypb.c CCMATH mathematics library source code. * * Copyright (C) 2000 Daniel A. Atkinson All rights reserved. * This code may be redistributed under the terms of the GNU library * public license (LGPL). ( See the lgpl.license file for details.) * ------------------------------------------------------------------------ */ /* Test: xtanh xsinh xcosh Uses: atox xprcmp xadd xtodub prxpr */ #define XMATH 1 #include "ccmath.h" int decd=30; void main(void) { struct xpr z,w,f,u; int k; char cf[3]; cf[0]='s'; cf[1]='c'; cf[2]='t'; for(k=0; k<3 ;++k){ switch(cf[k]){ case 't': printf(" Test of Tanh Function\n"); break; case 's': printf(" Test of Sinh Function\n"); break; case 'c': printf(" Test of Cosh Function\n"); break; } z=zero; w=atox("0.2"); u=atox("3.01"); for(; xprcmp(&z,&u)<0 ;z=xadd(z,w,0)){ /* compute selected extended precision hyperbolic function */ switch(cf[k]){ case 't': f=xtanh(z); break; case 's': f=xsinh(z); break; case 'c': f=xcosh(z); break; } printf(" %8.4f ",xtodub(z)); prxpr(f,decd); } } } /* Test output Test of Sinh Function 0.0000 0.000000000000000000000000000000e+0 0.2000 2.013360025410939876255682430103e-1 0.4000 4.107523258028155085402100138447e-1 0.6000 6.366535821482412711234543754651e-1 0.8000 8.881059821876230065747175731898e-1 1.0000 1.175201193643801456882381850596e+0 1.2000 1.509461355412172696442894911259e+0 1.4000 1.904301501451534055142123827697e+0 1.6000 2.375567953200229697584553544390e+0 1.8000 2.942174288095679772717109616299e+0 2.0000 3.626860407847018767668213983010e+0 2.2000 4.457105170535893521568816370519e+0 2.4000 5.466229213676094574431383774794e+0 2.6000 6.694732228393678258661307381207e+0 2.8000 8.191918354235915953251197311373e+0 3.0000 1.001787492740990189897459362002e+1 Test of Cosh Function 0.0000 1.000000000000000000000000000000e+0 0.2000 1.020066755619075846295503751629e+0 0.4000 1.081072371838454809284642938993e+0 0.6000 1.185465218242267703751913292698e+0 0.8000 1.337434946304844598004819958206e+0 1.0000 1.543080634815243778477905620822e+0 1.2000 1.810655567324374793087872518342e+0 1.4000 2.150898465393140532081985067531e+0 1.6000 2.577464471194885106069732812034e+0 1.8000 3.107473176317266311013914336731e+0 2.0000 3.762195691083631459562213477975e+0 2.2000 4.567908328898227404902960796369e+0 2.4000 5.556947166965507077806555994874e+0 2.6000 6.769005806608012139089517951377e+0 2.8000 8.252728416861133918246818699557e+0 3.0000 1.006766199577776584195393603567e+1 Test of Tanh Function 0.0000 0.000000000000000000000000000000e+0 0.2000 1.973753202249040007381573188110e-1 0.4000 3.799489622552248852677481238969e-1 0.6000 5.370495669980352858618253049269e-1 0.8000 6.640367702678489636848446564011e-1 1.0000 7.615941559557648881194582828631e-1 1.2000 8.336546070121552586740951218123e-1 1.4000 8.853516482022625075834176520256e-1 1.6000 9.216685544064712826832642230893e-1 1.8000 9.468060128462682896463983148048e-1 2.0000 9.640275800758168839464137241878e-1 2.2000 9.757431300314515204143066680301e-1 2.4000 9.836748576936802096397291499339e-1 2.6000 9.890274022010991893409624367582e-1 2.8000 9.926315202011280244806136325760e-1 3.0000 9.950547536867304513318801852555e-1 */